Merge pull request 'release/v0.1.6' (#32) from release/v0.1.6 into main

Reviewed-on: #32

.gitignore

@@ -99,4 +99,5 @@ cython_debug/
 *.sigmf-meta
 *.blue
 *.wav
-images/
+/images/
+!docs/source/images/**

README.md

@@ -159,7 +159,7 @@ Finally, RIA Toolkit OSS can be installed directly from the source code. This ap
 Once the project is installed, you can import modules, functions, and classes from the Toolkit for use in your Python code. For example, you can use the following import statement to access the `Recording` object:
 
 ```python
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 ```
 
 Additional usage information is provided in the project documentation: [RIA Toolkit OSS Documentation](https://ria-toolkit-oss.readthedocs.io/).
@@ -185,7 +185,7 @@ RIA Toolkit OSS is developed and maintained by [Qoherent](https://qoherent.ai/),
 If you are doing research with RIA Toolkit OSS, please cite the project:
 
 ```
-[1] Qoherent Inc., "Radio Intelligence Apps Toolkit OSS," 2025. [Online]. Available: https://riahub.ai/qoherent/ria-toolkit-oss
+[1] Qoherent Inc., "Radio Intelligence Apps Toolkit OSS," 2026. [Online]. Available: https://riahub.ai/qoherent/ria-toolkit-oss
 ```
 
 If you like what we're doing, don't forget to give the project a star! ⭐

docs/_build/html/_sources/intro/getting_started.rst.txt

@@ -6,10 +6,10 @@ This is a practical reference for the ``ria`` CLI from ``ria-toolkit-oss``.
 
 **Scope of this guide:**
 
-* Installation and setup
+* **Installation and SDR driver prerequisites** — how to install RIA Toolkit OSS and configure the system drivers your hardware requires
-* End-to-end CLI workflows
+* **End-to-end CLI workflow** — a step-by-step walkthrough from hardware discovery through capture, annotation, and processing
-* Full command reference for CLI features
+* **Full command reference** — options, flags, and examples for every ``ria`` command
-* Brief scripting section
+* **Python scripting preview** — using the toolkit API directly without the CLI
 
 **Official resources:**
 
@@ -18,76 +18,15 @@ This is a practical reference for the ``ria`` CLI from ``ria-toolkit-oss``.
 * `PyPI package <https://pypi.org/project/ria-toolkit-oss/>`_
 * `RIA Hub Conda package <https://riahub.ai/qoherent/-/packages/conda/ria-toolkit-oss>`_
 
-.. contents:: Contents
-   :local:
-   :depth: 2
-   :backlinks: none
-
 
 1) Installation and Setup
 ==========================
 
-1.1 Installation with Conda
+Before using the ``ria`` CLI, follow the :doc:`Installation <installation>` guide to
-----------------------------
+install RIA Toolkit OSS and any SDR drivers required for your hardware.
-
-RIA Toolkit OSS is available as a Conda package on RIA Hub. This is typically the easiest
-path when using SDR tooling that depends on native/system libraries.
-
-.. code-block:: bash
-
-   conda update --force conda
-   conda config --add channels https://riahub.ai/api/packages/qoherent/conda
-   conda activate base
-   conda install ria-toolkit-oss
-
-Verify:
-
-.. code-block:: bash
-
-   conda list | grep ria-toolkit-oss
 
 
-1.2 Installation with pip
+1.1 SDR driver prerequisites
---------------------------
-
-Use pip unless you specifically need to edit toolkit source.
-
-.. code-block:: bash
-
-   python3 -m venv .venv
-   source .venv/bin/activate
-   pip install --upgrade pip
-   pip install ria-toolkit-oss
-
-Verify CLI entrypoint:
-
-.. code-block:: bash
-
-   ria --help
-
-``pyproject.toml`` defines two script entry points:
-
-* ``ria``
-* ``ria-tools``
-
-Both point to the same CLI module (``ria_toolkit_oss_cli.cli:cli``).
-
-
-1.3 Optional install from source
-----------------------------------
-
-Use this for local development or testing unreleased changes.
-
-.. code-block:: bash
-
-   git clone https://riahub.ai/qoherent/ria-toolkit-oss.git
-   cd ria-toolkit-oss
-   python3 -m venv .venv
-   source .venv/bin/activate
-   pip install -e .
-
-
-1.4 SDR driver prerequisites
 -----------------------------
 
 Toolkit package install does not install all system SDR drivers. Install vendor/runtime
@@ -95,11 +34,22 @@ dependencies for the hardware you use.
 
 Examples (depends on device and OS):
 
-* USRP: UHD drivers
+.. list-table::
-* Pluto: libiio / IIO utilities
+   :widths: 25 75
-* BladeRF: libbladeRF
+   :header-rows: 1
-* HackRF: libhackrf
+
-* RTL-SDR: librtlsdr
+   * - Device
+     - Driver Package
+   * - USRP
+     - UHD drivers
+   * - Pluto
+     - libiio / IIO utilities
+   * - BladeRF
+     - libbladeRF
+   * - HackRF
+     - libhackrf
+   * - RTL-SDR
+     - librtlsdr
 
 See repo docs under ``docs/source/sdr_guides/*`` and your OS package instructions.
 
@@ -119,18 +69,34 @@ Top-level CLI follows this model:
 
 **Top-level commands:**
 
-* ``discover``
+.. list-table::
-* ``init``
+   :widths: 25 75
-* ``capture``
+   :header-rows: 1
-* ``view``
+
-* ``annotate`` (group)
+   * - Command
-* ``convert``
+     - Purpose
-* ``split``
+   * - :ref:`discover <cmd-discover>`
-* ``combine``
+     - Probe SDR drivers and enumerate attached hardware
-* ``generate`` (group)
+   * - :ref:`init <cmd-init>`
-* ``transform`` (group)
+     - Create and manage user metadata defaults
-* ``transmit``
+   * - :ref:`capture <cmd-capture>`
-* ``synth`` (alias of ``generate`` in command bindings)
+     - Record IQ samples from a connected SDR
+   * - :ref:`view <cmd-view>`
+     - Generate visualizations from IQ files
+   * - :ref:`annotate <cmd-annotate>`
+     - Label signal regions manually or with auto-detection (group)
+   * - :ref:`convert <cmd-convert>`
+     - Convert between IQ file formats
+   * - :ref:`split <cmd-split>`
+     - Split, trim, or extract recordings
+   * - :ref:`combine <cmd-combine>`
+     - Merge multiple recordings by concatenation or addition
+   * - :ref:`generate / synth <cmd-generate>`
+     - Generate synthetic IQ signals (group; ``synth`` is an alias)
+   * - :ref:`transform <cmd-transform>`
+     - Apply augmentations or impairments to recordings (group)
+   * - :ref:`transmit <cmd-transmit>`
+     - Transmit IQ through a TX-capable SDR
 
 
 3) Quick End-to-End Workflow
@@ -158,10 +124,8 @@ provenance fields.
 .. code-block:: bash
 
    ria init
-   # or non-interactive
+   ria init --author "Jane Doe" --project "rf-campaign-1" --location "Lab-A"  # non-interactive
-   ria init --author "Jane Doe" --project "rf-campaign-1" --location "Lab-A"
+   ria init --show  # show config
-   # show config
-   ria init --show
 
 
 3.3 Capture IQ
@@ -227,13 +191,14 @@ Replay recorded or synthesized IQ through a transmit-capable SDR.
 .. code-block:: bash
 
    ria transmit -d hackrf -f 2.44G -s 2e6 --input capture.sigmf-data
-   # or generated waveform
+   ria transmit -d hackrf --generate lfm --continuous  # generated waveform
-   ria transmit -d hackrf --generate lfm --continuous
 
 
 4) Command Reference
 =====================
 
+.. _cmd-discover:
+
 4.1 ``discover``
 -----------------
 
@@ -263,6 +228,8 @@ Replay recorded or synthesized IQ through a transmit-capable SDR.
   hidden in default output.
 
 
+.. _cmd-init:
+
 4.2 ``init``
 -------------
 
@@ -309,6 +276,8 @@ Replay recorded or synthesized IQ through a transmit-capable SDR.
    generate metadata, and YAML config loading paths).
 
 
+.. _cmd-capture:
+
 4.3 ``capture``
 ----------------
 
@@ -382,6 +351,8 @@ Device selection (``--device``) is optional if only one device is detected. Exac
    ria capture -c capture_config.yaml
 
 
+.. _cmd-view:
+
 4.4 ``view``
 -------------
 
@@ -442,7 +413,21 @@ Device selection (``--device``) is optional if only one device is detected. Exac
    ria view capture.npy --type full --title "Test Capture" --format pdf
    ria view capture.npy --show --no-save
    ria view old.npy --legacy --type simple
+   ria view recordings\qam64_35.npy --type simple
+   ria view recordings\qam64_35.npy --type full
 
+.. figure:: ../images/recordings/qam64_35.png
+   :alt: Example output of ria view recordings\qam64_35.npy --type simple
+
+   Output of ``ria view recordings\qam64_35.npy --type simple``
+
+.. figure:: ../images/recordings/qam64_35-full.png
+   :alt: Example output of ria view recordings\qam64_35.npy --type full
+
+   Output of ``ria view recordings\qam64_35.npy --type full``
+
+
+.. _cmd-annotate:
 
 4.5 ``annotate`` group
 -----------------------
@@ -459,8 +444,30 @@ Device selection (``--device``) is optional if only one device is detected. Exac
 
    ria annotate <subcommand> ...
 
-**Subcommands:** ``list``, ``add``, ``remove``, ``clear``, ``energy``, ``cusum``,
+**Subcommands:**
-``threshold``, ``separate``
+
+.. list-table::
+   :widths: 25 75
+   :header-rows: 1
+
+   * - Subcommand
+     - Purpose
+   * - ``list``
+     - Inspect all annotations on a recording
+   * - ``add``
+     - Add one annotation with explicit sample-domain bounds
+   * - ``remove``
+     - Remove one annotation by index
+   * - ``clear``
+     - Remove all annotations from a recording
+   * - ``energy``
+     - Auto-detect regions above the estimated noise floor
+   * - ``cusum``
+     - Auto-detect regime changes using change-point detection
+   * - ``threshold``
+     - Auto-detect regions using normalized magnitude thresholding
+   * - ``separate``
+     - Decompose annotations into narrower spectral components
 
 **General behavior:**
 
@@ -587,8 +594,16 @@ annotations.
    ria annotate add capture.sigmf-data --start 10000 --count 5000 --label burst
    ria annotate energy capture.sigmf-data --label signal --threshold 1.3
    ria annotate cusum capture.sigmf-data --min-duration 5
+   ria annotate threshold recordings/sample_recording3.npy --threshold 0.7 --label 70%
    ria annotate separate capture.sigmf-data --indices 0,1 --verbose
 
+.. figure:: ../images/recordings/sample_recording3_annotated.png
+   :alt: Example output of ria annotate threshold recordings/sample_recording3.npy --threshold 0.7 --label 70%
+
+   Output of ``ria annotate threshold recordings/sample_recording3.npy --threshold 0.7 --label 70%``
+
+
+.. _cmd-convert:
 
 4.6 ``convert``
 ----------------
@@ -629,6 +644,8 @@ inferred from the output file extension.
    ria convert old.npy --format sigmf --legacy --overwrite
 
 
+.. _cmd-split:
+
 4.7 ``split``
 --------------
 
@@ -670,6 +687,8 @@ Choose exactly one operation per invocation:
    ria split annotated.sigmf-data --extract-annotations --annotation-label payload
 
 
+.. _cmd-combine:
+
 4.8 ``combine``
 ----------------
 
@@ -717,6 +736,8 @@ Choose exactly one operation per invocation:
    ria combine signal.npy pattern.npy out.npy --mode add --align-mode repeat-spaced --repeat-spacing 10000
 
 
+.. _cmd-generate:
+
 4.9 ``generate`` group (and ``synth`` alias)
 ---------------------------------------------
 
@@ -728,15 +749,34 @@ Choose exactly one operation per invocation:
 
 ``ria synth ...`` is an alias for ``ria generate ...``.
 
-**Shape:**
+**Usage:**
 
 .. code-block:: bash
 
    ria generate <subcommand> [subcommand options] [common options]
 
 **Available subcommands:**
-``tone``, ``noise``, ``chirp``, ``square``, ``sawtooth``, ``qam``, ``apsk``, ``pam``,
+
-``fsk``, ``ook``, ``oqpsk``, ``gmsk``, ``psk``
+.. list-table::
+   :widths: 30 70
+   :header-rows: 1
+
+   * - Subcommand(s)
+     - Description
+   * - ``tone``
+     - Clean sinusoidal calibration/reference source
+   * - ``noise``
+     - Baseline noise floor data or controlled additive-noise synthesis
+   * - ``chirp``
+     - Sweep-based radar/sonar-style signals and bandwidth occupancy tests
+   * - ``square``, ``sawtooth``
+     - Periodic waveform primitives
+   * - ``qam``, ``apsk``, ``pam``, ``psk``
+     - Digital modulation families with pulse-shaping filter support
+   * - ``fsk``
+     - Frequency-shift keying with configurable tone spacing
+   * - ``ook``, ``oqpsk``, ``gmsk``
+     - On-off keying and continuous-phase modulation schemes
 
 **Common options shared across all generators:**
 
@@ -760,22 +800,16 @@ Multipath and IQ imbalance flags apply impairment-style post-processing during g
 
 Options: ``--frequency``, ``--amplitude``, ``--phase``
 
-Clean sinusoidal calibration/reference source.
-
 ``noise``
 ~~~~~~~~~~
 
 Options: ``--noise-type {gaussian,uniform}``, ``--power``
 
-Baseline noise floor data or controlled additive-noise synthesis.
-
 ``chirp``
 ~~~~~~~~~~
 
 Options: ``--bandwidth`` (required), ``--period`` (required), ``--type {up,down,up_down}``
 
-Sweep-based radar/sonar-style signals and bandwidth occupancy tests.
-
 ``square``
 ~~~~~~~~~~~
 
@@ -826,6 +860,8 @@ symbol transition sharpness).
    ria synth psk -s 2e6 -r 100e3 -M 8 -N 8000 -o psk8.npy
 
 
+.. _cmd-transform:
+
 4.10 ``transform`` group
 -------------------------
 
@@ -834,7 +870,7 @@ symbol transition sharpness).
 * Apply algorithmic transforms to existing recordings.
 * Run reusable augmentations/impairments for dataset diversity and robustness testing.
 
-**Shape:**
+**Usage:**
 
 .. code-block:: bash
 
@@ -895,6 +931,8 @@ inspect parameter hints. ``--view`` writes a PNG preview alongside transform out
    ria transform custom my_filter in.npy out.npy --transform-dir ./my_transforms --params cutoff=0.2
 
 
+.. _cmd-transmit:
+
 4.11 ``transmit``
 ------------------
 
@@ -993,17 +1031,7 @@ experiment-specific fields on the CLI.
    ria generate noise --config generate.yaml
 
 
-6) Practical Tips and Safety
+6) Version Notes
-=============================
-
-* Use ``ria discover`` before capture/transmit sessions.
-* Keep TX gain conservative first; validate with attenuators/dummy loads when needed.
-* Prefer SigMF for interoperable metadata and annotations.
-* For long workflows, keep outputs organized by campaign directories and consistent prefixes.
-* Use ``--verbose`` when debugging device init or driver issues.
-
-
-7) Version Notes
 =================
 
 These notes are based on the current implementation and should be re-validated against future
@@ -1016,18 +1044,19 @@ releases.
 3. Multiple non-CLI modules still import ``utils.*``, which can create runtime dependency
    coupling when using only ``ria-toolkit-oss`` in isolation.
 
-If you observe unexpected import errors after install, check the package version and
+.. tip::
-changelog, then test ``ria --help`` in a clean virtual environment.
+   If you observe unexpected import errors after install, check the package version and
+   changelog, then test ``ria --help`` in a clean virtual environment.
 
 
-8) Brief Scripting (Python) Preview
+7) Brief Scripting (Python) Preview
 =====================================
 
 For quick non-CLI use:
 
 .. code-block:: python
 
-   from ria_toolkit_oss.datatypes import Recording
+   from ria_toolkit_oss.data import Recording
    from ria_toolkit_oss.io import load_recording, to_sigmf
    from ria_toolkit_oss.transforms import iq_augmentations, iq_impairments
 
@@ -1037,47 +1066,3 @@ For quick non-CLI use:
    to_sigmf(imp, filename="capture_awgn", path=".")
 
 You can also call annotation algorithms and block-generator primitives from Python directly.
-
-
-9) Cheat Sheet
-===============
-
-.. code-block:: bash
-
-   # Install
-   pip install ria-toolkit-oss
-
-   # Discover
-   ria discover -v
-
-   # Init defaults
-   ria init --author "Jane" --project "rf1" --location "Lab-A"
-
-   # Capture
-   ria capture -d pluto -f 2.44G -s 2e6 -n 1000000 -o cap.sigmf-data
-
-   # View
-   ria view cap.sigmf-data --type simple
-
-   # Annotate
-   ria annotate energy cap.sigmf-data --threshold 1.2
-   ria annotate list cap.sigmf-data --verbose
-
-   # Convert
-   ria convert cap.sigmf-data cap.npy
-
-   # Split
-   ria split cap.sigmf-data --split-every 100000 --output-dir chunks
-
-   # Combine
-   ria combine chunks/a.npy chunks/b.npy merged.npy
-
-   # Generate
-   ria generate qam -s 2e6 -r 100e3 -M 16 -N 5000 -o qam16.npy
-
-   # Transform
-   ria transform augment channel_swap cap.npy
-   ria transform impair add_awgn_to_signal cap.npy --params snr=10
-
-   # Transmit
-   ria transmit -d hackrf --input cap.sigmf-data -f 2.44G -s 2e6

docs/source/_static/custom.css

@@ -1,6 +1,7 @@
 /* Change the hex values below to customize heading colours */
 
-.rst-content h1 { color: #2c3e50; }
+.rst-content { color: #e0e0e0; }
+.rst-content h1 { color: #ffffff; }
 .rst-content h2,
 .rst-content h2 a { color: #ffffff !important; font-size: 22px !important; }
 
@@ -22,8 +23,20 @@
 .rst-content .admonition.warning p {
     color: #ffffff !important;
 }
-.rst-content h4 { color: #404040; }
+.rst-content h4 { color: #cccccc; }
 
 .highlight * { color: #ffffff !important; }
 
 .ria-cmd { color: #2980b9 !important; }
+
+
+/* Table header text */
+.rst-content table.docutils th {
+    color: #ffffff !important;
+}
+
+/* Remove alternating row background colors from tables */
+.rst-content table.docutils td,
+.rst-content table.docutils tr:nth-child(2n-1) td {
+    background-color: transparent !important;
+}

docs/source/conf.py

@@ -12,9 +12,9 @@ sys.path.insert(0, os.path.abspath(os.path.join('..', '..')))
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
 
 project = 'ria-toolkit-oss'
-copyright = '2025, Qoherent Inc'
+copyright = '2026, Qoherent Inc'
 author = 'Qoherent Inc.'
-release = '0.1.5'
+release = '0.1.6'
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration

docs/source/examples/sdr/index.rst

@@ -1,4 +1,4 @@
-.. _examples:
+.. _sdr_examples:
 
 ############
 SDR Examples

docs/source/examples/sdr/rx.rst

@@ -25,7 +25,7 @@ In this example, we initialize the `Blade` SDR, configure it to record a signal
 
     import time
 
-    from ria_toolkit_oss.datatypes.recording import Recording
+    from ria_toolkit_oss.data.recording import Recording
     from ria_toolkit_oss.sdr.blade import Blade
 
     my_radio = Blade()

docs/source/examples/sdr/tx.rst

@@ -21,7 +21,7 @@ Code
 
     import numpy as np
     
-    from ria_toolkit_oss.datatypes.recording import Recording
+    from ria_toolkit_oss.data.recording import Recording
     from ria_toolkit_oss.sdr.blade import Blade
 
     # Parameters

docs/source/intro/installation.rst

@@ -4,7 +4,26 @@ Installation
 RIA Hub Toolkit OSS can be installed either as a Conda package or as a standard Python package.
 
 Please note that SDR drivers must be installed separately. Refer to the relevant guide in the
-:ref:`SDR Guides <sdr_guides>` section of the documentation for addition setup instructions.
+:ref:`SDR Guides <sdr_guides>` section of the documentation for additional setup instructions.
+
+Common driver packages by device (exact package names depend on your OS):
+
+.. list-table::
+   :widths: 25 75
+   :header-rows: 1
+
+   * - Device
+     - Driver Package
+   * - USRP
+     - UHD drivers
+   * - Pluto
+     - libiio / IIO utilities
+   * - BladeRF
+     - libbladeRF
+   * - HackRF
+     - libhackrf
+   * - RTL-SDR
+     - librtlsdr
 
 We want your experience with RIA Toolkit OSS to be as smooth and frictionless as possible. If you run into any 
 issues during installation, please reach out to our support team: ``support@qoherent.ai``.
@@ -84,12 +103,22 @@ Please follow the steps below to install RIA Toolkit OSS using pip:
       python -m venv venv
       venv\Scripts\activate
 
-2. Install RIA Toolkit OSS from PyPI with pip:
+2. Upgrade pip and install RIA Toolkit OSS:
 
    .. code-block:: bash
 
+      pip install --upgrade pip
       pip install ria-toolkit-oss
 
+3. Verify the CLI is available:
+
+   .. code-block:: bash
+
+      ria --help
+
+   A successful install prints the top-level help text. ``pyproject.toml`` registers two
+   entrypoints — ``ria`` and ``ria-tools`` — that both point to the same CLI module.
+
 RIA Toolkit OSS can also be installed from RIA Hub. However, RIA Hub does not yet support a proxy or cache for public packages. 
 We intend to add this missing functionality soon. In the meantime, please use the ``--no-deps`` option with pip to skip automatic
 dependency installation, and then manually install each dependency afterward.
@@ -119,3 +148,6 @@ Follow the steps below to install RIA Toolkit OSS from source:
    .. code-block:: bash
 
       pip install .
+
+   For local development, use ``pip install -e .`` instead to install in editable mode
+   so local changes take effect immediately without reinstalling.

docs/source/ria_toolkit_oss/data/radio_datasets.rst

@@ -11,15 +11,15 @@ The Radio Dataset Framework provides a software interface to access and manipula
 the need for users to interface with the source files directly. Instead, users initialize and interact with a Python
 object, while the complexities of efficient data retrieval and source file manipulation are managed behind the scenes.
 
-Ria Toolkit OSS includes an abstract class called :py:obj:`ria_toolkit_oss.datatypes.datasets.RadioDataset`, which defines common properties and
+Ria Toolkit OSS includes an abstract class called :py:obj:`ria_toolkit_oss.data.datasets.RadioDataset`, which defines common properties and
-behaviors for all radio datasets. :py:obj:`ria_toolkit_oss.datatypes.datasets.RadioDataset` can be considered a blueprint for all
+behaviors for all radio datasets. :py:obj:`ria_toolkit_oss.data.datasets.RadioDataset` can be considered a blueprint for all
 other radio dataset classes. This class is then subclassed to define more specific blueprints for different types
-of radio datasets. For example, :py:obj:`ria_toolkit_oss.datatypes.datasets.IQDataset`, which is tailored for machine learning tasks
+of radio datasets. For example, :py:obj:`ria_toolkit_oss.data.datasets.IQDataset`, which is tailored for machine learning tasks
 involving the processing of signals represented as IQ (In-phase and Quadrature) samples.
 
 Then, in the various project backends, there are concrete dataset classes, which inherit from both Ria Toolkit OSS and the base
 dataset class from the respective backend. For example, the :py:obj:`TorchIQDataset` class extends both
-:py:obj:`ria_toolkit_oss.datatypes.datasets.IQDataset` from Ria Toolkit OSS and :py:obj:`torch.ria_toolkit_oss.datatypes.IterableDataset` from
+:py:obj:`ria_toolkit_oss.data.datasets.IQDataset` from Ria Toolkit OSS and :py:obj:`torch.ria_toolkit_oss.data.IterableDataset` from
 PyTorch, providing a concrete dataset class tailored for IQ datasets and optimized for the PyTorch backend.
 
 Dataset initialization
@@ -130,7 +130,7 @@ Dataset processing and manipulation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 All radio datasets support methods tailored specifically for radio processing. These methods are backend-independent,
-inherited from the blueprints in Ria Toolkit OSS like :py:obj:`ria_toolkit_oss.datatypes.datasets.RadioDataset`.
+inherited from the blueprints in Ria Toolkit OSS like :py:obj:`ria_toolkit_oss.data.datasets.RadioDataset`.
 
 For example, we can trim down the length of the examples from 1,024 to 512 samples, and then augment the dataset:
 

docs/source/ria_toolkit_oss/data/ria_toolkit_oss.data.datasets.license.rst

@@ -1,7 +1,7 @@
 Dataset License SubModule
 =========================
 
-.. automodule:: ria_toolkit_oss.datatypes.datasets.license
+.. automodule:: ria_toolkit_oss.data.datasets.license
    :members:
    :undoc-members:
    :show-inheritance:

docs/source/ria_toolkit_oss/data/ria_toolkit_oss.data.rst

@@ -0,0 +1,25 @@
+Data Package (ria_toolkit_oss.data)
+=======================================
+
+.. |br| raw:: html
+
+   <br />
+
+.. automodule:: ria_toolkit_oss.data
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+Radio Dataset SubPackage
+------------------------
+
+.. automodule:: ria_toolkit_oss.data.datasets
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+.. toctree::
+   :maxdepth: 2
+
+   Dataset License SubModule <ria_toolkit_oss.data.datasets.license>
+   Radio Datasets <radio_datasets>

docs/source/ria_toolkit_oss/datatypes/ria_toolkit_oss.datatypes.rst

@@ -1,25 +0,0 @@
-Datatypes Package (ria_toolkit_oss.datatypes)
-=============================================
-
-.. |br| raw:: html
-
-   <br />
-
-.. automodule:: ria_toolkit_oss.datatypes
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Radio Dataset SubPackage
-------------------------
-
-.. automodule:: ria_toolkit_oss.datatypes.datasets
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-.. toctree::
-   :maxdepth: 2
-
-   Dataset License SubModule <ria_toolkit_oss.datatypes.datasets.license>
-   Radio Datasets <radio_datasets>

docs/source/ria_toolkit_oss/index.rst

@@ -11,7 +11,7 @@ class and function signatures, and doctest examples where available.
    :maxdepth: 2
    :caption: Contents:
 
-   Datatypes Package <datatypes/ria_toolkit_oss.datatypes>
+   Data Package <data/ria_toolkit_oss.data>
    SDR Package <ria_toolkit_oss.sdr>
    IO Package <ria_toolkit_oss.io>
    Transforms Package <ria_toolkit_oss.transforms>

docs/source/sdr_guides/blade.rst

@@ -40,34 +40,44 @@ Limitations
 - USB 3.0 connectivity is required for optimal performance; using USB 2.0 will significantly limit data
   transfer rates.
 
-Set up instructions (Linux, Radioconda)
+Set up instructions (Linux)
----------------------------------------
+---------------------------
 
-1. Activate your Radioconda environment.
+No additional Python packages are required for BladeRF beyond the base RIA Toolkit OSS installation.
+
+1. Install the system library:
 
   .. code-block:: bash
 
-     conda activate <your-env-name>
+    sudo apt install libbladerf-dev
 
-2. Install the base dependencies and drivers (*Easy method*):
+  For a more complete installation including CLI tools and FPGA images, use the Nuand PPA:
 
   .. code-block:: bash
 
     sudo add-apt-repository ppa:nuandllc/bladerf
     sudo apt-get update
-    sudo apt-get install bladerf
+    sudo apt-get install bladerf libbladerf-dev
-    sudo apt-get install libbladerf-dev
+    sudo apt-get install bladerf-fpga-hostedxa4  # Necessary for BladeRF 2.0 Micro xA4
-    sudo apt-get install bladerf-fpga-hostedxa4  # Necessary for installation of bladeRF 2.0 Micro A4.
 
-3. Install a ``udev`` rule by creating a link into your Radioconda installation:
+2. Install udev rules:
+
+  For most users:
 
   .. code-block:: bash
 
-     sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bladerf1.rules /etc/udev/rules.d/88-radioconda-nuand-bladerf1.rules
+    sudo udevadm control --reload
-     sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bladerf2.rules /etc/udev/rules.d/88-radioconda-nuand-bladerf2.rules
+    sudo udevadm trigger
-     sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bootloader.rules /etc/udev/rules.d/88-radioconda-nuand-bootloader.rules
+
-     sudo udevadm control --reload
+  For **Radioconda** users, create symlinks from your conda environment instead:
-     sudo udevadm trigger
+
+  .. code-block:: bash
+
+    sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bladerf1.rules /etc/udev/rules.d/88-radioconda-nuand-bladerf1.rules
+    sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bladerf2.rules /etc/udev/rules.d/88-radioconda-nuand-bladerf2.rules
+    sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/88-nuand-bootloader.rules /etc/udev/rules.d/88-radioconda-nuand-bootloader.rules
+    sudo udevadm control --reload
+    sudo udevadm trigger
 
 Further Information
 -------------------

docs/source/sdr_guides/hackrf.rst

@@ -39,39 +39,44 @@ Limitations
 - Bandwidth is limited to 20 MHz.
 - USB 2.0 connectivity might limit data transfer rates compared to USB 3.0 or Ethernet-based SDRs.
 
-Set up instructions (Linux, Radioconda)
+Set up instructions (Linux)
----------------------------------------
+---------------------------
 
-1. Activate your Radioconda environment:
+HackRF is supported out of the box after installing RIA Toolkit OSS.
+
+1. Ensure ``libhackrf`` is installed at the system level. On most Ubuntu installations this is already
+   present. If not:
 
   .. code-block:: bash
 
-     conda activate <your-env-name>
+    sudo apt install libhackrf-dev
 
-2. Install the System Package (Ubuntu / Debian):
+2. Install udev rules to allow non-root device access:
+
+  For most users:
 
   .. code-block:: bash
 
-     sudo apt-get update
+    sudo udevadm control --reload
-     sudo apt-get install hackrf
+    sudo udevadm trigger
 
-3. Install a ``udev`` rule by creating a link into your Radioconda installation:
+  For **Radioconda** users, create a symlink from your conda environment instead:
 
   .. code-block:: bash
 
-     sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/53-hackrf.rules /etc/udev/rules.d/53-radioconda-hackrf.rules
+    sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/53-hackrf.rules /etc/udev/rules.d/53-radioconda-hackrf.rules
-     sudo udevadm control --reload
+    sudo udevadm control --reload
-     sudo udevadm trigger
+    sudo udevadm trigger
 
-  Make sure your user account belongs to the plugdev group in order to access your device:
+  Make sure your user account belongs to the ``plugdev`` group in order to access your device:
 
   .. code-block:: bash
 
-     sudo usermod -a -G plugdev <user>
+    sudo usermod -a -G plugdev <user>
 
 .. note::
 
-   You may have to restart your system for changes to take effect.
+   You may have to restart your system for group membership changes to take effect.
 
 Further information
 -------------------

docs/source/sdr_guides/pluto.rst

@@ -43,34 +43,34 @@ Limitations
   affect stability.
 - USB 2.0 connectivity might limit data transfer rates compared to USB 3.0 or Ethernet-based SDRs.
 
-Set up instructions (Linux, Radioconda)
+Set up instructions (Linux)
----------------------------------------
+---------------------------
 
-1. Activate your Radioconda environment:
+The PlutoSDR is supported out of the box after installing RIA Toolkit OSS. The required Python package
+(``pyadi-iio``) is included in the toolkit's dependencies.
+
+1. Ensure ``libiio`` is installed at the system level. On most Ubuntu installations this is already present.
+   If not:
 
   .. code-block:: bash
 
-    conda activate <your-env-name>
+    sudo apt install libiio-dev libiio-utils libiio0
 
-2. Install system dependencies:
+.. note::
+
+   PlutoSDR devices are discoverable over both USB and network (mDNS). Network discovery uses Avahi — if
+   ``avahi-daemon`` is not running, network discovery will be skipped but USB discovery still works.
+
+2. Install a ``udev`` rule to allow non-root device access:
+
+  For most users:
 
   .. code-block:: bash
 
-    sudo apt-get update
+    sudo udevadm control --reload
-    sudo apt-get install -y \
+    sudo udevadm trigger
-          build-essential \
-          git \
-          libxml2-dev \
-          bison \
-          flex \
-          libcdk5-dev \
-          cmake \
-          libusb-1.0-0-dev \
-          libavahi-client-dev \
-          libavahi-common-dev \
-          libaio-dev
 
-3. Install a ``udev`` rule by creating a link into your Radioconda installation:
+  For **Radioconda** users, create a symlink from your conda environment instead:
 
   .. code-block:: bash
 
@@ -78,11 +78,18 @@ Set up instructions (Linux, Radioconda)
     sudo udevadm control --reload
     sudo udevadm trigger
 
-  Once you can talk to the hardware, you may want to perform the post-install steps detailed on the `PlutoSDR Documentation <https://wiki.analog.com/university/tools/pluto>`_.
+  Once you can communicate with the hardware, you may want to perform the post-install steps detailed on
+  the `PlutoSDR Documentation <https://wiki.analog.com/university/tools/pluto>`_.
 
-4. (Optional) Building ``libiio`` or ``libad9361-iio`` from source:
+3. (Optional) Building ``libiio`` or ``libad9361-iio`` from source:
 
-  This step is only required if you want the latest version of these libraries not provided in Radioconda.
+  This step is only required if you need a version not available via ``apt``. First install build
+  dependencies:
+
+  .. code-block:: bash
+
+    sudo apt-get install -y build-essential git libxml2-dev bison flex libcdk5-dev cmake \
+      libusb-1.0-0-dev libavahi-client-dev libavahi-common-dev libaio-dev
 
   .. code-block:: bash
 

docs/source/sdr_guides/rtlsdr.rst

@@ -30,18 +30,10 @@ Limitations
     - Sensitivity and performance can vary depending on the specific model and components.
     - Requires external software for signal processing and analysis.
 
-Set up instructions (Linux, Radioconda)
+Set up instructions (Linux)
----------------------------------------
+---------------------------
 
-1. Activate your Radioconda environment:
+1. If you previously had RTL-SDR drivers installed, purge them first:
-
-  .. code-block:: bash
-
-    conda activate <your-env-name>
-
-2. Purge drivers:
-
-If you already have other drivers installed, purge them from your system.
 
   .. code-block:: bash
 
@@ -53,47 +45,95 @@ If you already have other drivers installed, purge them from your system.
     sudo rm -rvf /usr/local/include/rtl_*
     sudo rm -rvf /usr/local/bin/rtl_*
 
-3. Install RTL-SDR Blog drivers:
+2. Install build dependencies:
 
   .. code-block:: bash
 
-    sudo apt-get install libusb-1.0-0-dev git cmake pkg-config build-essential
+    sudo apt install libusb-1.0-0-dev git cmake pkg-config build-essential
-    git clone https://github.com/osmocom/rtl-sdr 
+
-    cd rtl-sdr
+3. Build ``librtlsdr`` from source:
-    mkdir build
+
-    cd build
+  The standard ``librtlsdr`` package available via ``apt`` is missing symbols required by the Python
-    cmake ../ -DINSTALL_UDEV_RULES=ON
+  bindings. Build from the **rtl-sdr-blog fork**:
+
+  .. code-block:: bash
+
+    git clone https://github.com/rtlsdrblog/rtl-sdr-blog.git
+    cd rtl-sdr-blog
+    mkdir build && cd build
+    cmake .. -DINSTALL_UDEV_RULES=ON
     make
     sudo make install
     sudo cp ../rtl-sdr.rules /etc/udev/rules.d/
     sudo ldconfig
 
-4. Blacklist the DVB-T modules that would otherwise claim the device:
+  .. important::
+
+     Do not use the osmocom ``rtl-sdr`` repository or the Ubuntu ``librtlsdr-dev`` apt package. Neither
+     provides the ``rtlsdr_set_dithering`` symbol that the Python bindings require.
+
+4. Blacklist the kernel DVB driver:
+
+  The kernel DVB-T driver (``dvb_usb_rtl28xxu``) claims the RTL-SDR device and prevents ``librtlsdr``
+  from accessing it.
+
+  For most users:
 
   .. code-block:: bash
+
+    echo 'blacklist dvb_usb_rtl28xxu' | sudo tee /etc/modprobe.d/blacklist-rtlsdr.conf
+    sudo modprobe -r dvb_usb_rtl28xxu
+
+  For **Radioconda** users, a blacklist configuration is already provided in your conda environment:
+
+  .. code-block:: bash
+
     sudo ln -s $CONDA_PREFIX/etc/modprobe.d/rtl-sdr-blacklist.conf /etc/modprobe.d/radioconda-rtl-sdr-blacklist.conf
     sudo modprobe -r $(cat $CONDA_PREFIX/etc/modprobe.d/rtl-sdr-blacklist.conf | sed -n -e 's/^blacklist //p')
 
-.. note::
+  If ``modprobe -r`` fails with "Module is in use", unplug the RTL-SDR dongle, run the command again,
+  then plug it back in. Alternatively, reboot — the blacklist takes effect on next boot.
 
-   In addition to the Radioconda blacklist file, some systems also require
+  .. note::
-   manually blacklisting the following DVB-T modules to prevent them from
-   claiming the device:
 
-     - ``dvb_usb_rtl28xxu``
+     Some systems also require blacklisting additional DVB-T modules. Add these entries to your
-     - ``rtl2832``
+     blacklist configuration if needed:
-     - ``rtl2830``
 
-   Add these entries to ``rtlsdr.conf`` (or create the file at
+       - ``rtl2832``
-   ``/etc/modprobe.d/rtlsdr.conf``) if they are not already present.
+       - ``rtl2830``
 
-5. Install a udev rule by creating a link into your radioconda installation:
+5. Reload udev rules:
+
+  For most users (rules are installed by the build step above):
 
   .. code-block:: bash
+
+    sudo udevadm control --reload
+    sudo udevadm trigger
+
+  For **Radioconda** users, create a symlink from your conda environment instead:
+
+  .. code-block:: bash
+
     sudo ln -s $CONDA_PREFIX/lib/udev/rules.d/rtl-sdr.rules /etc/udev/rules.d/radioconda-rtl-sdr.rules
     sudo udevadm control --reload
     sudo udevadm trigger
 
+6. Install Python packages:
+
+  .. code-block:: bash
+
+    pip install pyrtlsdr==0.3.0
+    pip install setuptools==69.5.1
+
+  .. note::
+
+     ``pyrtlsdr`` 0.4.0 references a ``rtlsdr_set_dithering`` symbol not present in standard
+     ``librtlsdr`` builds. Version 0.3.0 works correctly.
+
+     ``pyrtlsdr`` 0.3.0 depends on ``pkg_resources``, which was removed in ``setuptools`` >= 82.
+     Pinning to 69.5.1 ensures ``pkg_resources`` is available.
+
 Further Information
 -------------------
     - `RTL-SDR Official Website <https://www.rtl-sdr.com/>`_

docs/source/sdr_guides/thinkrf.rst

@@ -39,18 +39,48 @@ Limitations
 Set up instructions (Linux)
 ---------------------------------
 
-Install PyRF
+ThinkRF devices require the ``pyrf`` package, which is written in Python 2 syntax and must be patched
+after installation to work with Python 3.
+
+.. note::
+
+   ``lib2to3`` was fully removed in Python 3.13. ThinkRF support is currently limited to
+   **Python 3.12 and below**.
+
+1. Install ``lib2to3``:
+
+  On some distributions (including Ubuntu 24.04+), ``lib2to3`` is not included by default:
 
   .. code-block:: bash
 
-    pip install 'pyrf>=2.8.0'
+    sudo apt install python3-lib2to3
 
-Convert PyRF scripts to Python 3
+2. Install ``pyrf``:
 
   .. code-block:: bash
 
-    cd ../scripts
+    pip install pyrf
-    ./convert_pyrf_to_python3.sh
+
+3. Patch ``pyrf`` for Python 3:
+
+  The ``pyrf`` package contains Python 2 syntax throughout (e.g., ``dict.iteritems()``, ``print``
+  statements). Run the following to automatically convert the entire package to Python 3:
+
+  .. code-block:: bash
+
+    python -c "
+    from lib2to3.refactor import RefactoringTool, get_fixers_from_package
+    import pyrf, os
+    pyrf_path = os.path.dirname(pyrf.__file__)
+    fixers = get_fixers_from_package('lib2to3.fixes')
+    tool = RefactoringTool(fixers)
+    tool.refactor_dir(pyrf_path, write=True)
+    print('Done')
+    "
+
+  .. note::
+
+     This patches the entire ``pyrf`` package in place, which is required for the driver to fully load.
 
 Further Information
 -------------------

docs/source/sdr_guides/usrp.rst

@@ -41,48 +41,111 @@ Limitations
 - Compatibility with certain software tools may vary depending on the version of the UHD.
 - Price range can be a consideration, especially for high-end models.
 
-Set up instructions (Linux, Radioconda)
+Set up instructions (Linux)
----------------------------------------
+---------------------------
 
-1. Activate your Radioconda environment:
+USRP devices require the UHD (USRP Hardware Driver) library with Python bindings. There is no pip-installable
+UHD package — it must either be installed via conda or built from source.
+
+**Option A: Install via conda (recommended for conda environments)**
 
   .. code-block:: bash
 
-     conda activate <your-env-name>
+    conda install conda-forge::uhd
 
-2. Install UHD and Python bindings:
+**Option B: Build from source (required for pip/venv environments)**
 
-  .. code-block:: bash
+  The Python bindings must target the same Python version used in your virtual environment.
 
-     conda install conda-forge::uhd    
+  1. Install build dependencies:
 
-3. Download UHD images:
+    .. code-block:: bash
+
+      sudo apt install cmake build-essential libboost-all-dev libusb-1.0-0-dev \
+        python3-dev python3-numpy libncurses-dev
+
+  2. Install the Mako template library into your virtual environment (used by UHD's build system):
+
+    .. code-block:: bash
+
+      pip install mako
+
+  3. Clone and build UHD with your virtual environment activated:
+
+    .. code-block:: bash
+
+      git clone https://github.com/EttusResearch/uhd.git
+      cd uhd
+      git checkout v4.7.0.0
+      cd host
+      mkdir build && cd build
+      cmake -DENABLE_PYTHON_API=ON -DPYTHON_EXECUTABLE=$(which python3) ..
+      make -j$(nproc)
+      sudo make install
+      sudo ldconfig
+
+    .. important::
+
+       Run the ``cmake`` command with your virtual environment activated so ``$(which python3)`` points
+       to the correct interpreter. Before running ``make``, verify the cmake output includes::
+
+         --   * LibUHD - Python API          → must say "Enabling"
+         -- Python interpreter: .../your-venv/bin/python3
+
+       If "LibUHD - Python API" is not listed under enabled components, the Python bindings will not be
+       built. The build typically takes 10–30 minutes.
+
+  4. Copy the Python bindings into your virtual environment if ``import uhd`` fails after installation:
+
+    .. code-block:: bash
+
+      cp -r ~/uhd/host/build/python/uhd ~/.venv/lib/python3.XX/site-packages/
+
+    Replace ``python3.XX`` with your Python version (e.g., ``python3.12``).
+
+    .. note::
+
+       If you have a pre-existing UHD installation built against a different Python version, you will see
+       a circular import error. The bindings must match the Python version in your virtual environment exactly.
+
+**After either installation method:**
+
+1. Download UHD FPGA/firmware images:
 
   .. code-block:: bash
 
     uhd_images_downloader
 
-4. Verify access to your device:
+2. Verify device access:
 
-   .. code-block:: bash
+  .. code-block:: bash
 
-      uhd_find_devices
+    uhd_find_devices
 
-   For USB devices only (e.g. B series), install a ``udev`` rule by creating a link into your Radioconda installation.
+  For USB devices (e.g. B-series), install a ``udev`` rule.
 
-   .. code-block:: bash
+  For most users:
 
-      sudo ln -s $CONDA_PREFIX/lib/uhd/utils/uhd-usrp.rules /etc/udev/rules.d/radioconda-uhd-usrp.rules
+  .. code-block:: bash
-      sudo udevadm control --reload
-      sudo udevadm trigger
 
-5. (Optional) Update firmware/FPGA images:
+    sudo udevadm control --reload
+    sudo udevadm trigger
 
-   .. code-block:: bash
+  For **Radioconda** users, create a symlink from your conda environment instead:
 
-      uhd_usrp_probe
+  .. code-block:: bash
 
-   This will ensure your device is running the latest firmware and FPGA versions.
+    sudo ln -s $CONDA_PREFIX/lib/uhd/utils/uhd-usrp.rules /etc/udev/rules.d/radioconda-uhd-usrp.rules
+    sudo udevadm control --reload
+    sudo udevadm trigger
+
+3. (Optional) Update firmware/FPGA images:
+
+  .. code-block:: bash
+
+    uhd_usrp_probe
+
+  This will ensure your device is running the latest firmware and FPGA versions.
 
 Further information
 -------------------

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.3.3 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.3.4 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -230,26 +230,26 @@ uvloop = ["uvloop (>=0.15.2) ; sys_platform != \"win32\"", "winloop (>=0.5.0) ;
 
 [[package]]
 name = "cachetools"
-version = "7.0.5"
+version = "7.0.6"
 description = "Extensible memoizing collections and decorators"
 optional = false
 python-versions = ">=3.10"
 groups = ["test"]
 files = [
-    {file = "cachetools-7.0.5-py3-none-any.whl", hash = "sha256:46bc8ebefbe485407621d0a4264b23c080cedd913921bad7ac3ed2f26c183114"},
+    {file = "cachetools-7.0.6-py3-none-any.whl", hash = "sha256:4e94956cfdd3086f12042cdd29318f5ced3893014f7d0d059bf3ead3f85b7f8b"},
-    {file = "cachetools-7.0.5.tar.gz", hash = "sha256:0cd042c24377200c1dcd225f8b7b12b0ca53cc2c961b43757e774ebe190fd990"},
+    {file = "cachetools-7.0.6.tar.gz", hash = "sha256:e5d524d36d65703a87243a26ff08ad84f73352adbeafb1cde81e207b456aaf24"},
 ]
 
 [[package]]
 name = "certifi"
-version = "2026.2.25"
+version = "2026.4.22"
 description = "Python package for providing Mozilla's CA Bundle."
 optional = false
 python-versions = ">=3.7"
 groups = ["agent", "docs", "test"]
 files = [
-    {file = "certifi-2026.2.25-py3-none-any.whl", hash = "sha256:027692e4402ad994f1c42e52a4997a9763c646b73e4096e4d5d6db8af1d6f0fa"},
+    {file = "certifi-2026.4.22-py3-none-any.whl", hash = "sha256:3cb2210c8f88ba2318d29b0388d1023c8492ff72ecdde4ebdaddbb13a31b1c4a"},
-    {file = "certifi-2026.2.25.tar.gz", hash = "sha256:e887ab5cee78ea814d3472169153c2d12cd43b14bd03329a39a9c6e2e80bfba7"},
+    {file = "certifi-2026.4.22.tar.gz", hash = "sha256:8d455352a37b71bf76a79caa83a3d6c25afee4a385d632127b6afb3963f1c580"},
 ]
 
 [[package]]
@@ -491,14 +491,14 @@ files = [
 
 [[package]]
 name = "click"
-version = "8.3.2"
+version = "8.3.3"
 description = "Composable command line interface toolkit"
 optional = false
 python-versions = ">=3.10"
 groups = ["main", "dev", "docs", "server", "test"]
 files = [
-    {file = "click-8.3.2-py3-none-any.whl", hash = "sha256:1924d2c27c5653561cd2cae4548d1406039cb79b858b747cfea24924bbc1616d"},
+    {file = "click-8.3.3-py3-none-any.whl", hash = "sha256:a2bf429bb3033c89fa4936ffb35d5cb471e3719e1f3c8a7c3fff0b8314305613"},
-    {file = "click-8.3.2.tar.gz", hash = "sha256:14162b8b3b3550a7d479eafa77dfd3c38d9dc8951f6f69c78913a8f9a7540fd5"},
+    {file = "click-8.3.3.tar.gz", hash = "sha256:398329ad4837b2ff7cbe1dd166a4c0f8900c3ca3a218de04466f38f6497f18a2"},
 ]
 
 [package.dependencies]
@@ -690,61 +690,61 @@ test-no-images = ["pytest", "pytest-cov", "pytest-rerunfailures", "pytest-xdist"
 
 [[package]]
 name = "cryptography"
-version = "46.0.7"
+version = "47.0.0"
 description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 optional = false
 python-versions = "!=3.9.0,!=3.9.1,>=3.8"
 groups = ["main"]
 files = [
-    {file = "cryptography-46.0.7-cp311-abi3-macosx_10_9_universal2.whl", hash = "sha256:ea42cbe97209df307fdc3b155f1b6fa2577c0defa8f1f7d3be7d31d189108ad4"},
+    {file = "cryptography-47.0.0-cp311-abi3-macosx_10_9_universal2.whl", hash = "sha256:160ad728f128972d362e714054f6ba0067cab7fb350c5202a9ae8ae4ce3ef1a0"},
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@@ -752,14 +752,7 @@ cffi = {version = ">=2.0.0", markers = "python_full_version >= \"3.9.0\" and pla
 typing-extensions = {version = ">=4.13.2", markers = "python_full_version < \"3.11.0\""}
 
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 [[package]]
 name = "cycler"
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 [[package]]
 name = "imagesize"
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 [package.dependencies]
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 python-dateutil = ">=2.7"
 
 [package.extras]
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 [[package]]
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 [[package]]
 name = "mypy-extensions"
 version = "1.1.0"
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 ]
 
 [package.dependencies]
@@ -1755,18 +1729,21 @@ flatbuffers = "*"
 numpy = ">=1.21.6"
 packaging = "*"
 protobuf = "*"
-sympy = "*"
+
+[package.extras]
+quantization = ["ml_dtypes"]
+symbolic = ["sympy"]
 
 [[package]]
 name = "packaging"
-version = "26.1"
+version = "26.2"
 description = "Core utilities for Python packages"
 optional = false
 python-versions = ">=3.8"
 groups = ["main", "dev", "docs", "server", "test"]
 files = [
-    {file = "packaging-26.1-py3-none-any.whl", hash = "sha256:5d9c0669c6285e491e0ced2eee587eaf67b670d94a19e94e3984a481aba6802f"},
+    {file = "packaging-26.2-py3-none-any.whl", hash = "sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e"},
-    {file = "packaging-26.1.tar.gz", hash = "sha256:f042152b681c4bfac5cae2742a55e103d27ab2ec0f3d88037136b6bfe7c9c5de"},
+    {file = "packaging-26.2.tar.gz", hash = "sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661"},
 ]
 markers = {server = "python_version >= \"3.11\""}
 
@@ -1893,21 +1870,20 @@ gssapi = ["gssapi (>=1.4.1) ; platform_system != \"Windows\"", "pyasn1 (>=0.1.7)
 
 [[package]]
 name = "pathspec"
-version = "1.0.4"
+version = "1.1.1"
 description = "Utility library for gitignore style pattern matching of file paths."
 optional = false
 python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "pathspec-1.0.4-py3-none-any.whl", hash = "sha256:fb6ae2fd4e7c921a165808a552060e722767cfa526f99ca5156ed2ce45a5c723"},
+    {file = "pathspec-1.1.1-py3-none-any.whl", hash = "sha256:a00ce642f577bf7f473932318056212bc4f8bfdf53128c78bbd5af0b9b20b189"},
-    {file = "pathspec-1.0.4.tar.gz", hash = "sha256:0210e2ae8a21a9137c0d470578cb0e595af87edaa6ebf12ff176f14a02e0e645"},
+    {file = "pathspec-1.1.1.tar.gz", hash = "sha256:17db5ecd524104a120e173814c90367a96a98d07c45b2e10c2f3919fff91bf5a"},
 ]
 
 [package.extras]
 hyperscan = ["hyperscan (>=0.7)"]
 optional = ["typing-extensions (>=4)"]
 re2 = ["google-re2 (>=1.1)"]
-tests = ["pytest (>=9)", "typing-extensions (>=4.15)"]
 
 [[package]]
 name = "pillow"
@@ -2974,14 +2950,14 @@ test = ["Cython", "array-api-strict (>=2.0,<2.1.1)", "asv", "gmpy2", "hypothesis
 
 [[package]]
 name = "sigmf"
-version = "1.8.0"
+version = "1.9.0"
 description = "Easily interact with Signal Metadata Format (SigMF) recordings."
 optional = false
 python-versions = ">=3.7"
 groups = ["main"]
 files = [
-    {file = "sigmf-1.8.0-py3-none-any.whl", hash = "sha256:f233ab04344fa3e42170926a646f7e53edd7edc65fcda42eb3d7efaf8a2e8263"},
+    {file = "sigmf-1.9.0-py3-none-any.whl", hash = "sha256:902e694894e61f8cdb75b0d69ae8c407f82f35435c3c5e4c1b586b313f77b89b"},
-    {file = "sigmf-1.8.0.tar.gz", hash = "sha256:91e10cb046499639e5f961d66a24c17a33ff76fc98df892eab0953cc9d659a50"},
+    {file = "sigmf-1.9.0.tar.gz", hash = "sha256:95e4b28156b2182035ecca5f5852108fb3cdef5f20b0cd48919bb0fc5f293d0e"},
 ]
 
 [package.dependencies]
@@ -3229,25 +3205,6 @@ typing-extensions = {version = ">=4.10.0", markers = "python_version < \"3.13\""
 [package.extras]
 full = ["httpx (>=0.27.0,<0.29.0)", "itsdangerous", "jinja2", "python-multipart (>=0.0.18)", "pyyaml"]
 
-[[package]]
-name = "sympy"
-version = "1.14.0"
-description = "Computer algebra system (CAS) in Python"
-optional = false
-python-versions = ">=3.9"
-groups = ["server", "test"]
-markers = "python_version >= \"3.11\""
-files = [
-    {file = "sympy-1.14.0-py3-none-any.whl", hash = "sha256:e091cc3e99d2141a0ba2847328f5479b05d94a6635cb96148ccb3f34671bd8f5"},
-    {file = "sympy-1.14.0.tar.gz", hash = "sha256:d3d3fe8df1e5a0b42f0e7bdf50541697dbe7d23746e894990c030e2b05e72517"},
-]
-
-[package.dependencies]
-mpmath = ">=1.1.0,<1.4"
-
-[package.extras]
-dev = ["hypothesis (>=6.70.0)", "pytest (>=7.1.0)"]
-
 [[package]]
 name = "tomli"
 version = "2.4.1"
@@ -3389,14 +3346,14 @@ typing-extensions = ">=4.12.0"
 
 [[package]]
 name = "tzdata"
-version = "2026.1"
+version = "2026.2"
 description = "Provider of IANA time zone data"
 optional = false
 python-versions = ">=2"
 groups = ["main"]
 files = [
-    {file = "tzdata-2026.1-py2.py3-none-any.whl", hash = "sha256:4b1d2be7ac37ceafd7327b961aa3a54e467efbdb563a23655fbfe0d39cfc42a9"},
+    {file = "tzdata-2026.2-py2.py3-none-any.whl", hash = "sha256:bbe9af844f658da81a5f95019480da3a89415801f6cc966806612cc7169bffe7"},
-    {file = "tzdata-2026.1.tar.gz", hash = "sha256:67658a1903c75917309e753fdc349ac0efd8c27db7a0cb406a25be4840f87f98"},
+    {file = "tzdata-2026.2.tar.gz", hash = "sha256:9173fde7d80d9018e02a662e168e5a2d04f87c41ea174b139fbef642eda62d10"},
 ]
 
 [[package]]
@@ -3419,14 +3376,14 @@ zstd = ["backports-zstd (>=1.0.0) ; python_version < \"3.14\""]
 
 [[package]]
 name = "uvicorn"
-version = "0.44.0"
+version = "0.46.0"
 description = "The lightning-fast ASGI server."
 optional = false
 python-versions = ">=3.10"
 groups = ["docs", "server", "test"]
 files = [
-    {file = "uvicorn-0.44.0-py3-none-any.whl", hash = "sha256:ce937c99a2cc70279556967274414c087888e8cec9f9c94644dfca11bd3ced89"},
+    {file = "uvicorn-0.46.0-py3-none-any.whl", hash = "sha256:bbebbcbed972d162afca128605223022bedd345b7bc7855ce66deb31487a9048"},
-    {file = "uvicorn-0.44.0.tar.gz", hash = "sha256:6c942071b68f07e178264b9152f1f16dfac5da85880c4ce06366a96d70d4f31e"},
+    {file = "uvicorn-0.46.0.tar.gz", hash = "sha256:fb9da0926999cc6cb22dc7cd71a94a632f078e6ae47ff683c5c420750fb7413d"},
 ]
 
 [package.dependencies]
@@ -3511,14 +3468,14 @@ test = ["aiohttp (>=3.10.5)", "flake8 (>=6.1,<7.0)", "mypy (>=0.800)", "psutil",
 
 [[package]]
 name = "virtualenv"
-version = "21.2.4"
+version = "21.3.0"
 description = "Virtual Python Environment builder"
 optional = false
 python-versions = ">=3.8"
 groups = ["test"]
 files = [
-    {file = "virtualenv-21.2.4-py3-none-any.whl", hash = "sha256:29d21e941795206138d0f22f4e45ff7050e5da6c6472299fb7103318763861ac"},
+    {file = "virtualenv-21.3.0-py3-none-any.whl", hash = "sha256:4d28ee41f6d9ec8f1f00cd472b9ffbcedda1b3d3b9a575b5c94a2d004fd51bd7"},
-    {file = "virtualenv-21.2.4.tar.gz", hash = "sha256:b294ef68192638004d72524ce7ef303e9d0cf5a44c95ce2e54a7500a6381cada"},
+    {file = "virtualenv-21.3.0.tar.gz", hash = "sha256:733750db978ec95c2d8eb4feadaa57091002bce404cb39ba69899cf7bd28944e"},
 ]
 
 [package.dependencies]
@@ -3749,4 +3706,4 @@ files = [
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10"
-content-hash = "ffde300b2fc93161d2279a6e2b899bc988d3b5eb3833135821830affc9a5fb62"
+content-hash = "66c9adf647316db90f963da05e8a83574378bfa4db2c69ce751446b5ee7c408c"

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "ria-toolkit-oss"
-version = "0.1.5"
+version = "0.1.6"
 description = "An open-source version of the RIA Toolkit, including the fundamental tools to get started developing, testing, and deploying radio intelligence applications"
 license = { text = "AGPL-3.0-only" }
 readme = "README.md"
@@ -50,7 +50,7 @@ dependencies = [
   "pyyaml (>=6.0.3,<7.0.0)",
   "click (>=8.1.0,<9.0.0)",
   "matplotlib (>=3.8.0,<4.0.0)",
-  "paramiko (>=4.0.0)"
+  "paramiko (>=3.5.1)"
 ]
 
 # [project.optional-dependencies] Commented out to prevent Tox tests from failing
@@ -149,6 +149,11 @@ exclude = '''
 
 [tool.pytest.ini_options]
 pythonpath = ["src"]
+filterwarnings = [
+    # FastAPI emits this internally when handling 422 responses; the constant
+    # is not yet renamed in the installed starlette version, so we can't migrate.
+    "ignore:'HTTP_422_UNPROCESSABLE_ENTITY' is deprecated:DeprecationWarning",
+]
 
 [tool.isort]
 profile = "black"

src/ria_toolkit_oss/agent/legacy_executor.py

@@ -68,7 +68,7 @@ _HEARTBEAT_INTERVAL = 30  # seconds between heartbeats
 _POLL_TIMEOUT = 30  # server-side long-poll duration
 _POLL_CLIENT_TIMEOUT = 40  # client read timeout — slightly longer than server
 _RECONNECT_PAUSE = 5  # seconds to wait after a poll error before retrying
-_CHUNK_SIZE = 50 * 1024 * 1024  # 50 MB — well below Cloudflare's 100 MB limit
+_CHUNK_SIZE = 10 * 1024 * 1024  # 10 MB per chunk — fast enough for git-LFS to process within timeout
 _DIRECT_THRESHOLD = 90 * 1024 * 1024  # files above this use chunked upload
 _CAPTURE_SAMPLES = 4096  # IQ samples per inference window
 _IDLE_LABELS = frozenset({"noise", "idle", "no_signal", "unknown_protocol", "background"})
@@ -93,16 +93,24 @@ class NodeAgent:
         name: str,
         sdr_device: str = "unknown",
         insecure: bool = False,
+        role: str = "general",
+        session_code: str | None = None,
     ) -> None:
         self.hub_url = hub_url.rstrip("/")
         self.api_key = api_key
         self.name = name
         self.sdr_device = sdr_device
         self.insecure = insecure
+        self.role = role
+        self.session_code = session_code
 
         self.node_id: str | None = None
         self._stop = threading.Event()
 
+        # ── TX state ────────────────────────────────────────────────────────
+        self._tx_stop = threading.Event()
+        self._tx_thread: threading.Thread | None = None
+
         # ── Inference state ─────────────────────────────────────────────────
         # Protected by _inf_lock for cross-thread model swaps.
         self._inf_lock = threading.Lock()
@@ -172,19 +180,27 @@ class NodeAgent:
         capabilities = ["campaign"]
         if self._ort_available:
             capabilities.append("inference")
-        resp = self._post(
+        if self.role == "tx":
-            "/composer/nodes/register",
+            capabilities.append("transmit")
-            json={
+        payload: dict = {
-                "name": self.name,
+            "name": self.name,
-                "sdr_device": self.sdr_device,
+            "sdr_device": self.sdr_device,
-                "ria_toolkit_version": self._ria_version,
+            "ria_toolkit_version": self._ria_version,
-                "capabilities": capabilities,
+            "capabilities": capabilities,
-            },
+            "role": self.role,
-            timeout=15,
+        }
-        )
+        if self.session_code:
+            payload["session_code"] = self.session_code
+        resp = self._post("/composer/nodes/register", json=payload, timeout=15)
         resp.raise_for_status()
         self.node_id = resp.json()["node_id"]
-        logger.info("Registered as %r (node_id=%s)", self.name, self.node_id)
+        logger.info(
+            "Registered as %r (node_id=%s, role=%s%s)",
+            self.name,
+            self.node_id,
+            self.role,
+            f", session_code={self.session_code!r}" if self.session_code else "",
+        )
 
     def _deregister(self) -> None:
         if not self.node_id:
@@ -245,9 +261,10 @@ class NodeAgent:
         if command == "run_campaign":
             campaign_id: str = cmd.get("campaign_id") or str(uuid.uuid4())
             config_dict: dict = cmd.get("payload") or {}
+            skip_local_tx: bool = bool(cmd.get("skip_local_tx", False))
             threading.Thread(
                 target=self._run_campaign,
-                args=(campaign_id, config_dict),
+                args=(campaign_id, config_dict, skip_local_tx),
                 daemon=True,
                 name=f"campaign-{campaign_id[:8]}",
             ).start()
@@ -269,6 +286,17 @@ class NodeAgent:
             self._stop_inference()
         elif command == "configure_inference":
             self._queue_sdr_config(cmd)
+        elif command == "start_transmit":
+            threading.Thread(
+                target=self._start_transmit,
+                args=(cmd,),
+                daemon=True,
+                name="ria-start-tx",
+            ).start()
+        elif command == "stop_transmit":
+            self._stop_transmit()
+        elif command == "configure_transmit":
+            logger.info("configure_transmit received — will apply on next step boundary")
         else:
             logger.warning("Unknown command %r — ignored", command)
 
@@ -276,7 +304,7 @@ class NodeAgent:
     # Campaign execution
     # ------------------------------------------------------------------
 
-    def _run_campaign(self, campaign_id: str, config_dict: dict) -> None:
+    def _run_campaign(self, campaign_id: str, config_dict: dict, skip_local_tx: bool = False) -> None:
         try:
             from ria_toolkit_oss.orchestration.campaign import CampaignConfig
             from ria_toolkit_oss.orchestration.executor import CampaignExecutor
@@ -288,10 +316,10 @@ class NodeAgent:
             )
             return
 
-        logger.info("Campaign %s starting", campaign_id[:8])
+        logger.info("Campaign %s starting (skip_local_tx=%s)", campaign_id[:8], skip_local_tx)
         try:
             config = CampaignConfig.from_dict(config_dict)
-            executor = CampaignExecutor(config)
+            executor = CampaignExecutor(config, skip_local_tx=skip_local_tx)
             result = executor.run()
             logger.info("Campaign %s completed — uploading recordings", campaign_id[:8])
             self._upload_recordings(campaign_id, config, result)
@@ -301,6 +329,58 @@ class NodeAgent:
             logger.error("Campaign %s failed: %s", campaign_id[:8], exc)
             self._report_campaign_status(campaign_id, "failed", error=str(exc))
 
+    # ------------------------------------------------------------------
+    # TX execution
+    # ------------------------------------------------------------------
+
+    def _start_transmit(self, cmd: dict) -> None:
+        """Execute a synthetic transmit campaign using TxExecutor.
+
+        The command payload mirrors a TransmitterConfig dict with an optional
+        ``schedule`` of steps.  Each step synthesises a signal and transmits it
+        via the local SDR in TX mode.
+        """
+        try:
+            from ria_toolkit_oss.orchestration.tx_executor import TxExecutor
+        except ImportError as exc:
+            logger.error("start_transmit: TxExecutor not available: %s", exc)
+            return
+
+        if self._tx_thread and self._tx_thread.is_alive():
+            logger.warning("start_transmit: TX already running — ignoring duplicate command")
+            return
+
+        self._tx_stop.clear()
+        campaign_id: str = cmd.get("campaign_id") or str(uuid.uuid4())
+        executor = TxExecutor(
+            config=cmd,
+            sdr_device=self.sdr_device,
+            stop_event=self._tx_stop,
+        )
+        self._tx_thread = threading.Thread(
+            target=self._run_tx_campaign,
+            args=(executor, campaign_id),
+            daemon=True,
+            name=f"tx-campaign-{campaign_id[:8]}",
+        )
+        self._tx_thread.start()
+
+    def _run_tx_campaign(self, executor: Any, campaign_id: str) -> None:
+        try:
+            executor.run()
+            logger.info("TX campaign %s completed", campaign_id[:8])
+            self._report_campaign_status(campaign_id, "completed")
+        except Exception as exc:
+            logger.error("TX campaign %s failed: %s", campaign_id[:8], exc)
+            self._report_campaign_status(campaign_id, "failed", error=str(exc))
+
+    def _stop_transmit(self) -> None:
+        """Signal the TX loop to stop gracefully."""
+        self._tx_stop.set()
+        if self._tx_thread and self._tx_thread.is_alive():
+            self._tx_thread.join(timeout=5.0)
+        logger.info("TX stopped")
+
     # ------------------------------------------------------------------
     # Inference — model loading
     # ------------------------------------------------------------------
@@ -579,13 +659,18 @@ class NodeAgent:
         base_url = f"{self.hub_url}/datasets/upload"
         steps = (result.get("steps") if isinstance(result, dict) else getattr(result, "steps", None)) or []
 
+        output_obj = getattr(config, "output", None)
+        folder = getattr(output_obj, "folder", None)
+        campaign_name: str = folder if folder is not None else (getattr(config, "name", None) or "")
         for step in steps:
             output_path: str | None = getattr(step, "output_path", None)
             if not output_path:
                 continue
             device_id: str = getattr(step, "transmitter_id", "") or ""
             for fpath in _sigmf_files(output_path):
-                filename = os.path.basename(fpath)
+                basename = os.path.basename(fpath)
+                path_parts = [p for p in (campaign_name, device_id) if p]
+                filename = "/".join(path_parts + [basename])
                 metadata = {
                     "filename": filename,
                     "repo_owner": repo_owner,
@@ -671,7 +756,7 @@ class NodeAgent:
                     headers=headers,
                     files={"file": (filename, chunk, "application/octet-stream")},
                     data={**metadata, "upload_id": upload_id, "chunk_index": i, "total_chunks": total_chunks},
-                    timeout=120,
+                    timeout=(30, None),  # 30s connect, no read timeout — server may take minutes on final chunk
                     verify=verify,
                 )
                 if not resp.ok:
@@ -848,6 +933,21 @@ def main() -> None:
         choices=["DEBUG", "INFO", "WARNING", "ERROR"],
         help="Logging verbosity (default: INFO)",
     )
+    parser.add_argument(
+        "--role",
+        default=None,
+        choices=["general", "rx", "tx"],
+        help=("Node role reported to the hub. " "'tx' enables synthetic transmission commands. " "Default: general"),
+    )
+    parser.add_argument(
+        "--session-code",
+        default=None,
+        metavar="CODE",
+        help=(
+            "3-word session code to pair this TX agent with a waiting campaign, "
+            "e.g. 'amber-peak-transmit'. Supplied by the campaign UI."
+        ),
+    )
 
     args = parser.parse_args()
 
@@ -861,6 +961,8 @@ def main() -> None:
     device = args.device or cfg.get("device", "unknown")
     insecure = args.insecure if args.insecure is not None else cfg.get("insecure", False)
     log_level = args.log_level or cfg.get("log_level", "INFO")
+    role = args.role or cfg.get("role", "general")
+    session_code = args.session_code or cfg.get("session_code")
 
     if not hub:
         parser.error("--hub is required (or set 'hub' in the config file)")
@@ -888,6 +990,8 @@ def main() -> None:
         name=name,
         sdr_device=device,
         insecure=insecure,
+        role=role,
+        session_code=session_code,
     )
     agent.run()
 

src/ria_toolkit_oss/annotations/annotation_transforms.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes.annotation import Annotation
+from ria_toolkit_oss.data.annotation import Annotation
 
 # TODO figure out how to transfer labels in the merge case
 

src/ria_toolkit_oss/annotations/cusum_annotator.py

@@ -3,7 +3,7 @@ from typing import Optional
 
 import numpy as np
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 
 
 def annotate_with_cusum(
@@ -24,7 +24,7 @@ def annotate_with_cusum(
     changes between a low and high amplitude.
 
     :param recording: A ``Recording`` object to annotate.
-    :type recording: ``ria_toolkit_oss.datatypes.Recording``
+    :type recording: ``ria_toolkit_oss.data.Recording``
     :param label: Label for the detected segments.
     :type label: str
     :param window_size: The length (in samples) of the moving average window.
@@ -38,7 +38,13 @@ def annotate_with_cusum(
     :type annotation_type: str
     """
 
-    sample_rate = recording.metadata["sample_rate"]
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Supply it with --sample-rate when using the CLI, or set "
+            "recording.sample_rate before calling this function."
+        )
     center_frequency = recording.metadata.get("center_frequency", 0)
 
     # Create an object of the time segmenter

src/ria_toolkit_oss/annotations/energy_detector.py

@@ -6,12 +6,13 @@ and occupied bandwidth calculation following ITU-R SM.328 standard.
 """
 
 import json
+import warnings
 from typing import Tuple
 
 import numpy as np
 from scipy.signal import filtfilt
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 
 
 def detect_signals_energy(
@@ -119,6 +120,17 @@ def detect_signals_energy(
     if active:
         boundaries.append((start, len(smoothed_power) - start))
 
+    if not boundaries and noise_floor > 0:
+        peak = float(np.max(smoothed_power))
+        dynamic_range = peak / noise_floor
+        if dynamic_range < threshold_factor:
+            warnings.warn(
+                f"detect_signals_energy: no signal boundaries found — dynamic range {dynamic_range:.2f}x is below "
+                f"the threshold factor {threshold_factor}x. The signal may be constant-envelope (e.g. CW or chirp). "
+                "If the entire recording is signal, use 'ria annotate cusum' to segment it as a single region.",
+                stacklevel=2,
+            )
+
     # Merge boundaries that are closer than min_distance
     merged_boundaries = []
     if boundaries:
@@ -135,7 +147,13 @@ def detect_signals_energy(
         merged_boundaries.append((start, length))
 
     # Create annotations from detected boundaries
-    sample_rate = recording.metadata["sample_rate"]
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Supply it with --sample-rate when using the CLI, or set "
+            "recording.sample_rate before calling this function."
+        )
     center_frequency = recording.metadata.get("center_frequency", 0)
 
     # Validate frequency method
@@ -351,7 +369,12 @@ def annotate_with_obw(
         >>> annotated = annotate_with_obw(recording, label="signal_obw")
     """
     signal = recording.data[0]
-    sample_rate = recording.metadata["sample_rate"]
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Set recording.sample_rate before calling this function."
+        )
     center_freq = recording.metadata.get("center_frequency", 0)
 
     # Calculate OBW

src/ria_toolkit_oss/annotations/parallel_signal_separator.py

@@ -49,13 +49,14 @@ allowing splitting of overlapping signals into separate training samples.
 """
 
 import json
+import warnings
 from typing import List, Optional, Tuple
 
 import numpy as np
 from scipy import ndimage
 from scipy import signal as scipy_signal
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 
 
 def find_spectral_components(
@@ -401,7 +402,13 @@ def split_recording_annotations(
         return recording
 
     signal = recording.data[0]
-    sample_rate = recording.metadata["sample_rate"]
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Supply it with --sample-rate when using the CLI, or set "
+            "recording.sample_rate before calling this function."
+        )
     center_frequency = recording.metadata.get("center_frequency", 0.0)
 
     # Build new annotation list
@@ -425,8 +432,11 @@ def split_recording_annotations(
                 else:
                     # No components found, keep original
                     new_annotations.append(anno)
-            except Exception:
+            except Exception as e:
-                # Split failed for any reason, keep original
+                warnings.warn(
+                    f"split_recording_annotations: failed to split annotation at index {i} ({e}); keeping original.",
+                    stacklevel=2,
+                )
                 new_annotations.append(anno)
         else:
             # Not in split list, keep as-is

src/ria_toolkit_oss/annotations/qualify_slice.py

@@ -1,6 +1,6 @@
 import numpy as np
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 
 
 def qualify_slice_from_annotations(recording: Recording, slice_length: int):
@@ -24,7 +24,7 @@ def qualify_slice_from_annotations(recording: Recording, slice_length: int):
 
     output_recordings = []
 
-    for i in range((len(recording.data[0]) // slice_length) - 1):
+    for i in range(len(recording.data[0]) // slice_length):
         start_index = slice_length * i
         end_index = slice_length * (i + 1)
 

src/ria_toolkit_oss/annotations/signal_isolation.py

@@ -1,8 +1,8 @@
 import numpy as np
 from scipy.signal import butter, lfilter
 
-from ria_toolkit_oss.datatypes.annotation import Annotation
+from ria_toolkit_oss.data.annotation import Annotation
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 
 def isolate_signal(recording: Recording, annotation: Annotation) -> Recording:
@@ -35,17 +35,24 @@ def isolate_signal(recording: Recording, annotation: Annotation) -> Recording:
 
     isolation_bw = anno_bw
 
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Set recording.sample_rate before calling isolate_signal."
+        )
+
     # frequency shift the center of the box about zero
     shifted_signal_slice = frequency_shift_iq_samples(
         iq_samples=signal_slice,
-        sample_rate=recording.metadata["sample_rate"],
+        sample_rate=sample_rate,
         shift_frequency=-1 * anno_base_center_freq,
     )
 
     # filter
-    if isolation_bw < recording.metadata["sample_rate"] - 1:
+    if isolation_bw < sample_rate - 1:
         filtered_signal = apply_complex_lowpass_filter(
-            signal=shifted_signal_slice, cutoff_frequency=isolation_bw, sample_rate=recording.metadata["sample_rate"]
+            signal=shifted_signal_slice, cutoff_frequency=isolation_bw, sample_rate=sample_rate
         )
 
     else:

src/ria_toolkit_oss/annotations/threshold_qualifier.py

@@ -42,11 +42,12 @@ classification or demodulation stages.
 """
 
 import json
+import warnings
 from typing import Optional
 
 import numpy as np
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 
 
 def _find_ranges(indices, max_gap):
@@ -216,11 +217,22 @@ def threshold_qualifier(
     """
     # Extract signal and metadata
     sample_data = recording.data[channel]
-    sample_rate = recording.metadata["sample_rate"]
+    sample_rate = recording.metadata.get("sample_rate")
+    if sample_rate is None:
+        raise ValueError(
+            "Recording metadata does not contain 'sample_rate'. "
+            "Supply it with --sample-rate when using the CLI, or set "
+            "recording.sample_rate before calling this function."
+        )
     center_frequency = recording.metadata.get("center_frequency", 0)
 
+    n_samples = len(sample_data)
+
     if window_size is None:
         window_size = max(64, int(sample_rate * 0.001))
+    # Cap at 1% of signal length so short recordings aren't over-smoothed into
+    # a flat envelope that collapses the dynamic range below the early-exit guard.
+    window_size = min(window_size, max(64, n_samples // 100))
 
     # --- 1. SIGNAL CONDITIONING ---
     # Convert to power (Magnitude squared)
@@ -237,6 +249,12 @@ def threshold_qualifier(
     # Soft early exit: keep a guard for low-contrast noise, but compute it from
     # the quieter tail of the envelope so burst-heavy captures are not rejected.
     if dynamic_range_ratio < 1.5:
+        warnings.warn(
+            f"threshold_qualifier: dynamic range ratio {dynamic_range_ratio:.2f} is below 1.5 — "
+            "the signal appears to be constant-envelope or pure noise, so no burst boundaries can be found. "
+            "If the entire recording is signal, use 'ria annotate cusum' to segment it as a single region.",
+            stacklevel=2,
+        )
         return Recording(data=recording.data, metadata=recording.metadata, annotations=recording.annotations)
 
     trigger_val = noise_floor + threshold * (max_power - noise_floor)
@@ -296,7 +314,7 @@ def threshold_qualifier(
     # burst energy does not bleed through the long window into adjacent regions,
     # which would inflate macro_residual_max and push the trigger above the
     # faint burst's average power.
-    macro_window_size = max(window_size * 16, int(sample_rate * 0.02))
+    macro_window_size = min(max(window_size * 16, int(sample_rate * 0.02)), max(window_size * 2, n_samples // 4))
     macro_kernel = np.ones(macro_window_size, dtype=np.float64) / macro_window_size
     # Expand each annotated range by half the macro window on both sides so that
     # the long convolution cannot "see" the leading/trailing edges of already-

src/ria_toolkit_oss/data/annotation.py

@@ -57,7 +57,7 @@ class Annotation:
 
     def is_valid(self) -> bool:
         """
-        Check that the annotation sample count is > 0 and the freq_lower_edge<freq_upper_edge.
+        Verify ``sample_count > 0`` and the ``freq_lower_edge < freq_upper_edge``.
 
         :returns: True if valid, False if not.
         """
@@ -96,9 +96,9 @@ class Annotation:
     def __eq__(self, other: Annotation) -> bool:
         return self.__dict__ == other.__dict__
 
-    def to_sigmf_format(self):
+    def to_sigmf_format(self) -> dict:
         """
-        Returns a JSON dictionary representing this annotation formatted to be saved in a .sigmf-meta file.
+        Returns a JSON dictionary representation, formatted for saving in a ``.sigmf-meta`` file.
         """
 
         annotation_dict = {SigMFFile.START_INDEX_KEY: self.sample_start, SigMFFile.LENGTH_INDEX_KEY: self.sample_count}
@@ -119,7 +119,8 @@ class Annotation:
 
 def _is_jsonable(x: Any) -> bool:
     """
-    :return: True if x is JSON serializable, False otherwise.
+    :return: True if ``x`` is JSON serializable, False otherwise.
+    :rtype: bool
     """
     try:
         json.dumps(x)

src/ria_toolkit_oss/data/datasets/dataset_builder.py

@@ -7,8 +7,8 @@ from typing import Any, Optional
 
 from packaging.version import Version
 
-from ria_toolkit_oss.datatypes.datasets.license.dataset_license import DatasetLicense
+from ria_toolkit_oss.data.datasets.license.dataset_license import DatasetLicense
-from ria_toolkit_oss.datatypes.datasets.radio_dataset import RadioDataset
+from ria_toolkit_oss.data.datasets.radio_dataset import RadioDataset
 from ria_toolkit_oss.utils.abstract_attribute import abstract_attribute
 
 

src/ria_toolkit_oss/data/datasets/iq_dataset.py

@@ -7,11 +7,11 @@ from typing import Optional
 import h5py
 import numpy as np
 
-from ria_toolkit_oss.datatypes.datasets.h5helpers import (
+from ria_toolkit_oss.data.datasets.h5helpers import (
     append_entry_inplace,
     copy_dataset_entry_by_index,
 )
-from ria_toolkit_oss.datatypes.datasets.radio_dataset import RadioDataset
+from ria_toolkit_oss.data.datasets.radio_dataset import RadioDataset
 
 
 class IQDataset(RadioDataset, ABC):
@@ -19,7 +19,7 @@ class IQDataset(RadioDataset, ABC):
     radiofrequency (RF) signals represented as In-phase (I) and Quadrature (Q) samples.
 
     For machine learning tasks that involve processing spectrograms, please use
-    ria_toolkit_oss.datatypes.datasets.SpectDataset instead.
+    ria_toolkit_oss.data.datasets.SpectDataset instead.
 
     This is an abstract interface defining common properties and behaviour of IQDatasets. Therefore, this class
     should not be instantiated directly. Instead, it is subclassed to define custom interfaces for specific machine

src/ria_toolkit_oss/data/datasets/radio_dataset.py

@@ -12,7 +12,7 @@ import numpy as np
 import pandas as pd
 from numpy.typing import ArrayLike
 
-from ria_toolkit_oss.datatypes.datasets.h5helpers import (
+from ria_toolkit_oss.data.datasets.h5helpers import (
     append_entry_inplace,
     copy_file,
     copy_over_example,
@@ -29,7 +29,7 @@ class RadioDataset(ABC):
 
     This is an abstract interface defining common properties and behavior of radio datasets. Therefore, this class
     should not be instantiated directly. Instead, it should be subclassed to define specific interfaces for different
-    types of radio datasets. For example, see ria_toolkit_oss.datatypes.datasets.IQDataset, which is a radio dataset
+    types of radio datasets. For example, see ria_toolkit_oss.data.datasets.IQDataset, which is a radio dataset
     subclass tailored for tasks involving the processing of radio signals represented as IQ (In-phase and Quadrature)
     samples.
 

src/ria_toolkit_oss/data/datasets/spect_dataset.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import os
 from abc import ABC
 
-from ria_toolkit_oss.datatypes.datasets.radio_dataset import RadioDataset
+from ria_toolkit_oss.data.datasets.radio_dataset import RadioDataset
 
 
 class SpectDataset(RadioDataset, ABC):
@@ -13,7 +13,7 @@ class SpectDataset(RadioDataset, ABC):
     radio signal spectrograms.
 
     For machine learning tasks that involve processing on IQ samples, please use
-    ria_toolkit_oss.datatypes.datasets.IQDataset instead.
+    ria_toolkit_oss.data.datasets.IQDataset instead.
 
     This is an abstract interface defining common properties and behaviour of IQDatasets. Therefore, this class
     should not be instantiated directly. Instead, it is subclassed to define custom interfaces for specific machine

src/ria_toolkit_oss/data/datasets/split.py

@@ -6,11 +6,8 @@ from typing import Optional
 import numpy as np
 from numpy.random import Generator
 
-from ria_toolkit_oss.datatypes.datasets import RadioDataset
+from ria_toolkit_oss.data.datasets import RadioDataset
-from ria_toolkit_oss.datatypes.datasets.h5helpers import (
+from ria_toolkit_oss.data.datasets.h5helpers import copy_over_example, make_empty_clone
-    copy_over_example,
-    make_empty_clone,
-)
 
 
 def split(dataset: RadioDataset, lengths: list[int | float]) -> list[RadioDataset]:
@@ -31,7 +28,7 @@ def split(dataset: RadioDataset, lengths: list[int | float]) -> list[RadioDatase
     cases.
 
     This function is deterministic, meaning it will always produce the same split. For a random split, see
-    ria_toolkit_oss.datatypes.datasets.random_split.
+    ria_toolkit_oss.data.datasets.random_split.
 
     :param dataset: Dataset to be split.
     :type dataset: RadioDataset
@@ -50,7 +47,7 @@ def split(dataset: RadioDataset, lengths: list[int | float]) -> list[RadioDatase
     >>> import string
     >>> import numpy as np
     >>> import pandas as pd
-    >>> from ria_toolkit_oss.datatypes.datasets import split
+    >>> from ria_toolkit_oss.data.datasets import split
 
     First, let's generate some random data:
 
@@ -126,7 +123,7 @@ def random_split(
     training and test datasets.
 
     This restriction makes it unlikely that a random split will produce datasets with the exact lengths specified.
-    If it is important to ensure the closest possible split, consider using ria_toolkit_oss.datatypes.datasets.split
+    If it is important to ensure the closest possible split, consider using ria_toolkit_oss.data.datasets.split
     instead.
 
     :param dataset: Dataset to be split.
@@ -144,7 +141,7 @@ def random_split(
     :rtype: list of RadioDataset
 
     See Also:
-        ria_toolkit_oss.datatypes.datasets.split: Usage is the same as for ``random_split()``.
+        ria_toolkit_oss.data.datasets.split: Usage is the same as for ``random_split()``.
     """
     if not isinstance(dataset, RadioDataset):
         raise ValueError(f"'dataset' must be RadioDataset or one of its subclasses, got {type(dataset)}.")

src/ria_toolkit_oss/data/recording.py

@@ -12,7 +12,7 @@ from typing import Any, Iterator, Optional
 import numpy as np
 from numpy.typing import ArrayLike
 
-from ria_toolkit_oss.datatypes.annotation import Annotation
+from ria_toolkit_oss.data.annotation import Annotation
 
 PROTECTED_KEYS = ["rec_id", "timestamp"]
 
@@ -26,7 +26,7 @@ class Recording:
     Metadata is stored in a dictionary of key value pairs,
     to include information such as sample_rate and center_frequency.
 
-    Annotations are a list of :ref:`Annotation <utils.data.Annotation>`,
+    Annotations are a list of :class:`~ria_toolkit_oss.data.Annotation`,
     defining bounding boxes in time and frequency with labels and metadata.
 
     Here, signal data is represented as a NumPy array. This class is then extended in the RIA Backends to provide
@@ -46,7 +46,7 @@ class Recording:
 
     :param metadata: Additional information associated with the recording.
     :type metadata: dict, optional
-    :param annotations: A collection of ``Annotation`` objects defining bounding boxes.
+    :param annotations: A collection of :class:`~ria_toolkit_oss.data.Annotation` objects defining bounding boxes.
     :type annotations: list of Annotations, optional
 
     :param dtype: Explicitly specify the data-type of the complex samples. Must be a complex NumPy type, such as
@@ -66,7 +66,7 @@ class Recording:
     **Examples:**
 
     >>> import numpy
-    >>> from ria_toolkit_oss.datatypes import Recording, Annotation
+    >>> from ria_toolkit_oss.data import Recording, Annotation
 
     >>> # Create an array of complex samples, just 1s in this case.
     >>> samples = numpy.ones(10000, dtype=numpy.complex64)
@@ -146,7 +146,7 @@ class Recording:
                 self._metadata["timestamp"] = time.time()
         else:
             if not isinstance(self._metadata["timestamp"], (int, float)):
-                raise ValueError("timestamp must be int or float, not ", type(self._metadata["timestamp"]))
+                raise ValueError(f"timestamp must be int or float, not {type(self._metadata['timestamp'])}")
 
         if "rec_id" not in self.metadata:
             self._metadata["rec_id"] = generate_recording_id(data=self.data, timestamp=self._metadata["timestamp"])
@@ -274,7 +274,13 @@ class Recording:
 
         :return: A new recording with the same metadata and data, with dtype.
 
-        TODO: Add example usage.
+
+        **Examples:**
+
+        .. todo::
+
+           Usage examples coming soon!
+
         """
         # Rather than check for a valid datatype, let's cast and check the result. This makes it easier to provide
         # cross-platform support where the types are aliased across platforms.
@@ -305,7 +311,7 @@ class Recording:
         Create a recording and add metadata:
 
         >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
+        >>> from ria_toolkit_oss.data import Recording
         >>>
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -360,7 +366,7 @@ class Recording:
         Create a recording and update metadata:
 
         >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -387,6 +393,7 @@ class Recording:
         """
         if key not in self.metadata:
             self.add_to_metadata(key=key, value=value)
+            return
 
         if not _is_jsonable(value):
             raise ValueError("Value must be JSON serializable.")
@@ -414,7 +421,7 @@ class Recording:
         Create a recording and add metadata:
 
         >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -438,7 +445,7 @@ class Recording:
         'rec_id': 'fda0f41...'}  # Example value
         """
         if key not in PROTECTED_KEYS:
-            self._metadata.pop(key)
+            self._metadata.pop(key, None)
         else:
             raise ValueError(f"Key {key} is protected and cannot be modified or removed.")
 
@@ -447,7 +454,7 @@ class Recording:
 
         :param output_path: The output image path. Defaults to "images/signal.png".
         :type output_path: str, optional
-        :param kwargs: Keyword arguments passed on to utils.view.view_sig.
+        :param kwargs: Keyword arguments passed on to ria_toolkit_oss.view.view_sig.
         :type: dict of keyword arguments
 
         **Examples:**
@@ -455,7 +462,7 @@ class Recording:
         Create a recording and view it as a plot in a .png image:
 
         >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -466,14 +473,14 @@ class Recording:
         >>> recording = Recording(data=samples, metadata=metadata)
         >>> recording.view()
         """
-        from ria_toolkit_oss.view import view_sig
+        from ria_toolkit_oss.view.view_signal import view_sig
 
         view_sig(recording=self, output_path=output_path, **kwargs)
 
     def simple_view(self, **kwargs) -> None:
         """Create a plot of various signal visualizations as a PNG or SVG image.
 
-        :param kwargs: Keyword arguments passed on to ria_toolkit_oss.view.view_signal_simple.create_plots.
+        :param kwargs: Keyword arguments passed on to ria_toolkit_oss.view.view_signal_simple.view_simple_sig.
         :type: dict of keyword arguments
 
         **Examples:**
@@ -481,7 +488,7 @@ class Recording:
         Create a recording and view it as a plot in a .png image:
 
         >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -504,7 +511,7 @@ class Recording:
         The SigMF io format is defined by the `SigMF Specification Project <https://github.com/sigmf/SigMF>`_
 
         :param recording: The recording to be written to file.
-        :type recording: utils.data.Recording
+        :type recording: ria_toolkit_oss.data.Recording
         :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
         :type filename: os.PathLike or str, optional
         :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
@@ -513,22 +520,6 @@ class Recording:
         :raises IOError: If there is an issue encountered during the file writing process.
 
         :return: None
-
-        **Examples:**
-
-        Create a recording and view it as a plot in a `.png` image:
-
-        >>> import numpy
-        >>> from utils.data import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        ...     "sample_rate": 1e6,
-        ...     "center_frequency": 2.44e9,
-        ... }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.view()
         """
         from ria_toolkit_oss.io.recording import to_sigmf
 
@@ -554,7 +545,7 @@ class Recording:
         Create a recording and save it to a .npy file:
 
         >>> import numpy
-        >>> from utils.data import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {
@@ -605,7 +596,7 @@ class Recording:
         Create a recording and save it to a .wav file:
 
         >>> import numpy
-        >>> from utils.data import Recording
+        >>> from ria_toolkit_oss.data import Recording
         >>> samples = numpy.exp(1j * 2 * numpy.pi * 0.1 * numpy.arange(10000))
         >>> metadata = {"sample_rate": 1e6, "center_frequency": 915e6}
         >>> recording = Recording(data=samples, metadata=metadata)
@@ -655,7 +646,7 @@ class Recording:
         Create a recording and save it to a .blue file:
 
         >>> import numpy
-        >>> from utils.data import Recording
+        >>> from ria_toolkit_oss.data import Recording
         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
         >>> metadata = {"sample_rate": 1e6, "center_frequency": 2.44e9}
         >>> recording = Recording(data=samples, metadata=metadata)
@@ -668,36 +659,36 @@ class Recording:
     def trim(self, num_samples: int, start_sample: Optional[int] = 0) -> Recording:
         """Trim Recording samples to a desired length, shifting annotations to maintain alignment.
 
-         :param start_sample: The start index of the desired trimmed recording. Defaults to 0.
+        :param start_sample: The start index of the desired trimmed recording. Defaults to 0.
-         :type start_sample: int, optional
+        :type start_sample: int, optional
-         :param num_samples: The number of samples that the output trimmed recording will have.
+        :param num_samples: The number of samples that the output trimmed recording will have.
-         :type num_samples: int
+        :type num_samples: int
-         :raises IndexError: If start_sample + num_samples is greater than the length of the recording.
+        :raises IndexError: If start_sample + num_samples is greater than the length of the recording.
-         :raises IndexError: If sample_start < 0 or num_samples < 0.
+        :raises IndexError: If sample_start < 0 or num_samples < 0.
 
-         :return: The trimmed Recording.
+        :return: The trimmed Recording.
-         :rtype: Recording
+        :rtype: Recording
 
         **Examples:**
 
-         Create a recording and trim it:
+        Create a recording and trim it:
 
-         >>> import numpy
+        >>> import numpy
-         >>> from utils.data import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
-         >>> samples = numpy.ones(10000, dtype=numpy.complex64)
+        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-         >>> metadata = {
+        >>> metadata = {
-         ...     "sample_rate": 1e6,
+        ...     "sample_rate": 1e6,
-         ...     "center_frequency": 2.44e9,
+        ...     "center_frequency": 2.44e9,
-         ... }
+        ... }
 
-         >>> recording = Recording(data=samples, metadata=metadata)
+        >>> recording = Recording(data=samples, metadata=metadata)
-         >>> print(len(recording))
+        >>> print(len(recording))
-         10000
+        10000
 
-         >>> trimmed_recording = recording.trim(start_sample=1000, num_samples=1000)
+        >>> trimmed_recording = recording.trim(start_sample=1000, num_samples=1000)
-         >>> print(len(trimmed_recording))
+        >>> print(len(trimmed_recording))
-         1000
+        1000
         """
 
         if start_sample < 0:
@@ -712,7 +703,14 @@ class Recording:
         data = self.data[:, start_sample:end_sample]
 
         new_annotations = copy.deepcopy(self.annotations)
+        trimmed_annotations = []
         for annotation in new_annotations:
+            # skip annotations entirely outside the trim window
+            if annotation.sample_start + annotation.sample_count <= start_sample:
+                continue
+            if annotation.sample_start >= end_sample:
+                continue
+
             # trim annotation if it goes outside the trim boundaries
             if annotation.sample_start < start_sample:
                 annotation.sample_count = annotation.sample_count - (start_sample - annotation.sample_start)
@@ -723,8 +721,9 @@ class Recording:
 
             # shift annotation to align with the new start point
             annotation.sample_start = annotation.sample_start - start_sample
+            trimmed_annotations.append(annotation)
 
-        return Recording(data=data, metadata=self.metadata, annotations=new_annotations)
+        return Recording(data=data, metadata=self.metadata, annotations=trimmed_annotations)
 
     def normalize(self) -> Recording:
         """Scale the recording data, relative to its maximum value, so that the magnitude of the maximum sample is 1.
@@ -737,7 +736,7 @@ class Recording:
         Create a recording with maximum amplitude 0.5 and normalize to a maximum amplitude of 1:
 
         >>> import numpy
-        >>> from utils.data import Recording
+        >>> from ria_toolkit_oss.data import Recording
 
         >>> samples = numpy.ones(10000, dtype=numpy.complex64) * 0.5
         >>> metadata = {
@@ -753,7 +752,10 @@ class Recording:
         >>> print(numpy.max(numpy.abs(normalized_recording.data)))
         1
         """
-        scaled_data = self.data / np.max(abs(self.data))
+        max_val = np.max(abs(self.data))
+        if max_val == 0:
+            raise ValueError("Cannot normalize a recording with all-zero data.")
+        scaled_data = self.data / max_val
         return Recording(data=scaled_data, metadata=self.metadata, annotations=self.annotations)
 
     def __len__(self) -> int:

src/ria_toolkit_oss/datatypes/__init__.py

@@ -1,8 +0,0 @@
-"""
-The datatypes package contains abstract data types tailored for radio machine learning.
-"""
-
-__all__ = ["Annotation", "Recording"]
-
-from .annotation import Annotation
-from .recording import Recording

src/ria_toolkit_oss/datatypes/annotation.py

@@ -1,129 +0,0 @@
-from __future__ import annotations
-
-import json
-from typing import Any, Optional
-
-from sigmf import SigMFFile
-
-
-class Annotation:
-    """Signal annotations are labels or additional information associated with specific data points or segments within
-    a signal. These annotations could be used for tasks like supervised learning, where the goal is to train a model
-    to recognize patterns or characteristics in the signal associated with these annotations.
-
-    Annotations can be used to label interesting points in your recording.
-
-    :param sample_start: The index of the starting sample of the annotation.
-    :type sample_start: int
-    :param sample_count: The index of the ending sample of the annotation, inclusive.
-    :type sample_count: int
-    :param freq_lower_edge: The lower frequency of the annotation.
-    :type freq_lower_edge: float
-    :param freq_upper_edge: The upper frequency of the annotation.
-    :type freq_upper_edge: float
-    :param label: The label that will be displayed with the bounding box in compatible viewers including IQEngine.
-     Defaults to an emtpy string.
-    :type label: str, optional
-    :param comment: A human-readable comment. Defaults to an empty string.
-    :type comment: str, optional
-    :param detail: A dictionary of user defined annotation-specific metadata. Defaults to None.
-    :type detail: dict, optional
-    """
-
-    def __init__(
-        self,
-        sample_start: int,
-        sample_count: int,
-        freq_lower_edge: float,
-        freq_upper_edge: float,
-        label: Optional[str] = "",
-        comment: Optional[str] = "",
-        detail: Optional[dict] = None,
-    ):
-        """Initialize a new Annotation instance."""
-        self.sample_start = int(sample_start)
-        self.sample_count = int(sample_count)
-        self.freq_lower_edge = float(freq_lower_edge)
-        self.freq_upper_edge = float(freq_upper_edge)
-        self.label = str(label)
-        self.comment = str(comment)
-
-        if detail is None:
-            self.detail = {}
-        elif not _is_jsonable(detail):
-            raise ValueError(f"Detail object is not json serializable: {detail}")
-        else:
-            self.detail = detail
-
-    def is_valid(self) -> bool:
-        """
-        Verify ``sample_count > 0`` and the ``freq_lower_edge < freq_upper_edge``.
-
-        :returns: True if valid, False if not.
-        """
-
-        return self.sample_count > 0 and self.freq_lower_edge < self.freq_upper_edge
-
-    def overlap(self, other):
-        """
-        Quantify how much the bounding box in this annotation overlaps with another annotation.
-
-        :param other: The other annotation.
-        :type other: Annotation
-
-        :returns: The area of the overlap in samples*frequency, or 0 if they do not overlap."""
-
-        sample_overlap_start = max(self.sample_start, other.sample_start)
-        sample_overlap_end = min(self.sample_start + self.sample_count, other.sample_start + other.sample_count)
-
-        freq_overlap_start = max(self.freq_lower_edge, other.freq_lower_edge)
-        freq_overlap_end = min(self.freq_upper_edge, other.freq_upper_edge)
-
-        if freq_overlap_start >= freq_overlap_end or sample_overlap_start >= sample_overlap_end:
-            return 0
-        else:
-            return (sample_overlap_end - sample_overlap_start) * (freq_overlap_end - freq_overlap_start)
-
-    def area(self):
-        """
-        The 'area' of the bounding box, samples*frequency.
-        Useful to quantify annotation size.
-
-        :returns: sample length multiplied by bandwidth."""
-
-        return self.sample_count * (self.freq_upper_edge - self.freq_lower_edge)
-
-    def __eq__(self, other: Annotation) -> bool:
-        return self.__dict__ == other.__dict__
-
-    def to_sigmf_format(self) -> dict:
-        """
-        Returns a JSON dictionary representation, formatted for saving in a ``.sigmf-meta`` file.
-        """
-
-        annotation_dict = {SigMFFile.START_INDEX_KEY: self.sample_start, SigMFFile.LENGTH_INDEX_KEY: self.sample_count}
-
-        annotation_dict["metadata"] = {
-            SigMFFile.LABEL_KEY: self.label,
-            SigMFFile.COMMENT_KEY: self.comment,
-            SigMFFile.FHI_KEY: self.freq_upper_edge,
-            SigMFFile.FLO_KEY: self.freq_lower_edge,
-            "ria:detail": self.detail,
-        }
-
-        if _is_jsonable(annotation_dict):
-            return annotation_dict
-        else:
-            raise ValueError("Annotation dictionary was not json serializable.")
-
-
-def _is_jsonable(x: Any) -> bool:
-    """
-    :return: True if ``x`` is JSON serializable, False otherwise.
-    :rtype: bool
-    """
-    try:
-        json.dumps(x)
-        return True
-    except (TypeError, OverflowError):
-        return False

src/ria_toolkit_oss/datatypes/recording.py

@@ -1,855 +0,0 @@
-from __future__ import annotations
-
-import copy
-import hashlib
-import json
-import os
-import re
-import time
-import warnings
-from typing import Any, Iterator, Optional
-
-import numpy as np
-from numpy.typing import ArrayLike
-
-from ria_toolkit_oss.datatypes.annotation import Annotation
-
-PROTECTED_KEYS = ["rec_id", "timestamp"]
-
-
-class Recording:
-    """Tape of complex IQ (in-phase and quadrature) samples with associated metadata and annotations.
-
-    Recording data is a complex array of shape C x N, where C is the number of channels
-    and N is the number of samples in each channel.
-
-    Metadata is stored in a dictionary of key value pairs,
-    to include information such as sample_rate and center_frequency.
-
-    Annotations are a list of :class:`~ria_toolkit_oss.datatypes.Annotation`,
-    defining bounding boxes in time and frequency with labels and metadata.
-
-    Here, signal data is represented as a NumPy array. This class is then extended in the RIA Backends to provide
-    support for different data structures, such as Tensors.
-
-    Recordings are long-form tapes can be obtained either from a software-defined radio (SDR) or generated
-    synthetically. Then, machine learning datasets are curated from collection of recordings by segmenting these
-    longer-form tapes into shorter units called slices.
-
-    All recordings are assigned a unique 64-character recording ID, ``rec_id``. If this field is missing from the
-    provided metadata, a new ID will be generated upon object instantiation.
-
-    :param data: Signal data as a tape IQ samples, either C x N complex, where C is the number of
-        channels and N is number of samples in the signal. If data is a one-dimensional array of complex samples with
-        length N, it will be reshaped to a two-dimensional array with dimensions 1 x N.
-    :type data: array_like
-
-    :param metadata: Additional information associated with the recording.
-    :type metadata: dict, optional
-    :param annotations: A collection of :class:`~ria_toolkit_oss.datatypes.Annotation` objects defining bounding boxes.
-    :type annotations: list of Annotations, optional
-
-    :param dtype: Explicitly specify the data-type of the complex samples. Must be a complex NumPy type, such as
-        ``np.complex64`` or ``np.complex128``. Default is None, in which case the type is determined implicitly. If
-        ``data`` is a NumPy array, the Recording will use the dtype of ``data`` directly without any conversion.
-    :type dtype: numpy dtype object, optional
-    :param timestamp: The timestamp when the recording data was generated. If provided, it should be a float or integer
-        representing the time in seconds since epoch (e.g., ``time.time()``). Only used if the `timestamp` field is not
-        present in the provided metadata.
-    :type dtype: float or int, optional
-
-    :raises ValueError: If data is not complex 1xN or CxN.
-    :raises ValueError: If metadata is not a python dict.
-    :raises ValueError: If metadata is not json serializable.
-    :raises ValueError: If annotations is not a list of valid annotation objects.
-
-    **Examples:**
-
-    >>> import numpy
-    >>> from ria_toolkit_oss.datatypes import Recording, Annotation
-
-    >>> # Create an array of complex samples, just 1s in this case.
-    >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-
-    >>> # Create a dictionary of relevant metadata.
-    >>> sample_rate = 1e6
-    >>> center_frequency = 2.44e9
-    >>> metadata = {
-    ...     "sample_rate": sample_rate,
-    ...     "center_frequency": center_frequency,
-    ...     "author": "me",
-    ... }
-
-    >>> # Create an annotation for the annotations list.
-    >>> annotations = [
-    ...     Annotation(
-    ...         sample_start=0,
-    ...         sample_count=1000,
-    ...         freq_lower_edge=center_frequency - (sample_rate / 2),
-    ...         freq_upper_edge=center_frequency + (sample_rate / 2),
-    ...         label="example",
-    ...     )
-    ... ]
-
-    >>> # Store samples, metadata, and annotations together in a convenient object.
-    >>> recording = Recording(data=samples, metadata=metadata, annotations=annotations)
-    >>> print(recording.metadata)
-    {'sample_rate': 1000000.0, 'center_frequency': 2440000000.0, 'author': 'me'}
-    >>> print(recording.annotations[0].label)
-    'example'
-    """
-
-    def __init__(  # noqa C901
-        self,
-        data: ArrayLike | list[list],
-        metadata: Optional[dict[str, any]] = None,
-        dtype: Optional[np.dtype] = None,
-        timestamp: Optional[float | int] = None,
-        annotations: Optional[list[Annotation]] = None,
-    ):
-
-        data_arr = np.asarray(data)
-
-        if np.iscomplexobj(data_arr):
-            # Expect C x N
-            if data_arr.ndim == 1:
-                self._data = np.expand_dims(data_arr, axis=0)  # N -> 1 x N
-            elif data_arr.ndim == 2:
-                self._data = data_arr
-            else:
-                raise ValueError("Complex data must be C x N.")
-
-        else:
-            raise ValueError("Input data must be complex.")
-
-        if dtype is not None:
-            self._data = self._data.astype(dtype)
-
-        assert np.iscomplexobj(self._data)
-
-        if metadata is None:
-            self._metadata = {}
-        elif isinstance(metadata, dict):
-            self._metadata = metadata
-        else:
-            raise ValueError(f"Metadata must be a python dict, but was {type(metadata)}.")
-
-        if not _is_jsonable(metadata):
-            raise ValueError("Value must be JSON serializable.")
-
-        if "timestamp" not in self.metadata:
-            if timestamp is not None:
-                if not isinstance(timestamp, (int, float)):
-                    raise ValueError(f"timestamp must be int or float, not {type(timestamp)}")
-                self._metadata["timestamp"] = timestamp
-            else:
-                self._metadata["timestamp"] = time.time()
-        else:
-            if not isinstance(self._metadata["timestamp"], (int, float)):
-                raise ValueError(f"timestamp must be int or float, not {type(self._metadata['timestamp'])}")
-
-        if "rec_id" not in self.metadata:
-            self._metadata["rec_id"] = generate_recording_id(data=self.data, timestamp=self._metadata["timestamp"])
-
-        if annotations is None:
-            self._annotations = []
-        elif isinstance(annotations, list):
-            self._annotations = annotations
-        else:
-            raise ValueError("Annotations must be a list or None.")
-
-        if not all(isinstance(annotation, Annotation) for annotation in self._annotations):
-            raise ValueError("All elements in self._annotations must be of type Annotation.")
-
-        self._index = 0
-
-    @property
-    def data(self) -> np.ndarray:
-        """
-        :return: Recording data, as a complex array.
-        :type: np.ndarray
-
-        .. note::
-
-           For recordings with more than 1,024 samples, this property returns a read-only view of the data.
-
-        .. note::
-
-           To access specific samples, consider indexing the object directly with ``rec[c, n]``.
-        """
-        if self._data.size > 1024:
-            # Returning a read-only view prevents mutation at a distance while maintaining performance.
-            v = self._data.view()
-            v.setflags(write=False)
-            return v
-        else:
-            return self._data.copy()
-
-    @property
-    def metadata(self) -> dict:
-        """
-        :return: Dictionary of recording metadata.
-        :type: dict
-        """
-        return self._metadata.copy()
-
-    @property
-    def annotations(self) -> list[Annotation]:
-        """
-        :return: List of recording annotations
-        :type: list of Annotation objects
-        """
-        return self._annotations.copy()
-
-    @property
-    def shape(self) -> tuple[int]:
-        """
-        :return: The shape of the data array.
-        :type: tuple of ints
-        """
-        return np.shape(self.data)
-
-    @property
-    def n_chan(self) -> int:
-        """
-        :return: The number of channels in the recording.
-        :type: int
-        """
-        return self.shape[0]
-
-    @property
-    def rec_id(self) -> str:
-        """
-        :return: Recording ID.
-        :type: str
-        """
-        return self.metadata["rec_id"]
-
-    @property
-    def dtype(self) -> str:
-        """
-        :return: Data-type of the data array's elements.
-        :type: numpy dtype object
-        """
-        return self.data.dtype
-
-    @property
-    def timestamp(self) -> float | int:
-        """
-        :return: Recording timestamp (time in seconds since epoch).
-        :type: float or int
-        """
-        return self.metadata["timestamp"]
-
-    @property
-    def sample_rate(self) -> float | None:
-        """
-        :return: Sample rate of the recording, or None is 'sample_rate' is not in metadata.
-        :type: str
-        """
-        return self.metadata.get("sample_rate")
-
-    @sample_rate.setter
-    def sample_rate(self, sample_rate: float | int) -> None:
-        """Set the sample rate of the recording.
-
-        :param sample_rate: The sample rate of the recording.
-        :type sample_rate: float or int
-
-        :return: None
-        """
-        self.add_to_metadata(key="sample_rate", value=sample_rate)
-
-    def astype(self, dtype: np.dtype) -> Recording:
-        """Copy of the recording, data cast to a specified type.
-
-        .. todo: This method is not yet implemented.
-
-        :param dtype: Data-type to which the array is cast. Must be a complex scalar type, such as ``np.complex64`` or
-            ``np.complex128``.
-        :type dtype: NumPy data type, optional
-
-        .. note: Casting to a data type with less precision can risk losing data by truncating or rounding values,
-          potentially resulting in a loss of accuracy and significant information.
-
-        :return: A new recording with the same metadata and data, with dtype.
-
-
-        **Examples:**
-
-        .. todo::
-
-           Usage examples coming soon!
-
-        """
-        # Rather than check for a valid datatype, let's cast and check the result. This makes it easier to provide
-        # cross-platform support where the types are aliased across platforms.
-        with warnings.catch_warnings():
-            warnings.simplefilter("ignore")  # Casting may generate user warnings. E.g., complex -> real
-            data = self.data.astype(dtype)
-
-        if np.iscomplexobj(data):
-            return Recording(data=data, metadata=self.metadata, annotations=self.annotations)
-        else:
-            raise ValueError("dtype must be a complex number scalar type.")
-
-    def add_to_metadata(self, key: str, value: Any) -> None:
-        """Add a new key-value pair to the recording metadata.
-
-        :param key: New metadata key, must be snake_case.
-        :type key: str
-        :param value: Corresponding metadata value.
-        :type value: any
-
-        :raises ValueError: If key is already in metadata or if key is not a valid metadata key.
-        :raises ValueError: If value is not JSON serializable.
-
-        :return: None.
-
-        **Examples:**
-
-        Create a recording and add metadata:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-        >>>
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        >>>     "sample_rate": 1e6,
-        >>>     "center_frequency": 2.44e9,
-        >>> }
-        >>>
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'timestamp': 17369...,
-        'rec_id': 'fda0f41...'}
-        >>>
-        >>> recording.add_to_metadata(key="author", value="me")
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'author': 'me',
-        'timestamp': 17369...,
-        'rec_id': 'fda0f41...'}
-        """
-        if key in self.metadata:
-            raise ValueError(
-                f"Key {key} already in metadata. Use Recording.update_metadata() to modify existing fields."
-            )
-
-        if not _is_valid_metadata_key(key):
-            raise ValueError(f"Invalid metadata key: {key}.")
-
-        if not _is_jsonable(value):
-            raise ValueError("Value must be JSON serializable.")
-
-        self._metadata[key] = value
-
-    def update_metadata(self, key: str, value: Any) -> None:
-        """Update the value of an existing metadata key,
-        or add the key value pair if it does not already exist.
-
-        :param key: Existing metadata key.
-        :type key: str
-        :param value: New value to enter at key.
-        :type value: any
-
-        :raises ValueError: If value is not JSON serializable
-        :raises ValueError: If key is protected.
-
-        :return: None.
-
-        **Examples:**
-
-        Create a recording and update metadata:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        >>>     "sample_rate": 1e6,
-        >>>     "center_frequency": 2.44e9,
-        >>>     "author": "me"
-        >>> }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'author': "me",
-        'timestamp': 17369...
-        'rec_id': 'fda0f41...'}
-
-        >>> recording.update_metadata(key="author", value=you")
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'author': "you",
-        'timestamp': 17369...
-        'rec_id': 'fda0f41...'}
-        """
-        if key not in self.metadata:
-            self.add_to_metadata(key=key, value=value)
-            return
-
-        if not _is_jsonable(value):
-            raise ValueError("Value must be JSON serializable.")
-
-        if key in PROTECTED_KEYS:  # Check protected keys.
-            raise ValueError(f"Key {key} is protected and cannot be modified or removed.")
-
-        else:
-            self._metadata[key] = value
-
-    def remove_from_metadata(self, key: str):
-        """
-        Remove a key from the recording metadata.
-        Does not remove key if it is protected.
-
-        :param key: The key to remove.
-        :type key: str
-
-        :raises ValueError: If key is protected.
-
-        :return: None.
-
-        **Examples:**
-
-        Create a recording and add metadata:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        ...     "sample_rate": 1e6,
-        ...     "center_frequency": 2.44e9,
-        ... }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'timestamp': 17369...,  # Example value
-        'rec_id': 'fda0f41...'}  # Example value
-
-        >>> recording.add_to_metadata(key="author", value="me")
-        >>> print(recording.metadata)
-        {'sample_rate': 1000000.0,
-        'center_frequency': 2440000000.0,
-        'author': 'me',
-        'timestamp': 17369...,  # Example value
-        'rec_id': 'fda0f41...'}  # Example value
-        """
-        if key not in PROTECTED_KEYS:
-            self._metadata.pop(key, None)
-        else:
-            raise ValueError(f"Key {key} is protected and cannot be modified or removed.")
-
-    def view(self, output_path: Optional[str] = "images/signal.png", **kwargs) -> None:
-        """Create a plot of various signal visualizations as a PNG image.
-
-        :param output_path: The output image path. Defaults to "images/signal.png".
-        :type output_path: str, optional
-        :param kwargs: Keyword arguments passed on to utils.view.view_sig.
-        :type: dict of keyword arguments
-
-        **Examples:**
-
-        Create a recording and view it as a plot in a .png image:
-
-        >>> import numpy
-        >>> from utils.data import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        >>>     "sample_rate": 1e6,
-        >>>     "center_frequency": 2.44e9,
-        >>> }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.view()
-        """
-        from ria_toolkit_oss.view.view_signal import view_sig
-
-        view_sig(recording=self, output_path=output_path, **kwargs)
-
-    def simple_view(self, **kwargs) -> None:
-        """Create a plot of various signal visualizations as a PNG or SVG image.
-
-        :param kwargs: Keyword arguments passed on to utils.view.view_signal_simple.create_plots.
-        :type: dict of keyword arguments
-
-        **Examples:**
-
-        Create a recording and view it as a plot in a .png image:
-
-        >>> import numpy
-        >>> from utils.data import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        >>>     "sample_rate": 1e6,
-        >>>     "center_frequency": 2.44e9,
-        >>> }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.simple_view()
-        """
-        from ria_toolkit_oss.view.view_signal_simple import view_simple_sig
-
-        view_simple_sig(recording=self, **kwargs)
-
-    def to_sigmf(
-        self, filename: Optional[str] = None, path: Optional[os.PathLike | str] = None, overwrite: bool = False
-    ) -> None:
-        """Write recording to a set of SigMF files.
-
-        The SigMF io format is defined by the `SigMF Specification Project <https://github.com/sigmf/SigMF>`_
-
-        :param recording: The recording to be written to file.
-        :type recording: ria_toolkit_oss.datatypes.Recording
-        :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
-        :type filename: os.PathLike or str, optional
-        :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
-        :type path: os.PathLike or str, optional
-
-        :raises IOError: If there is an issue encountered during the file writing process.
-
-        :return: None
-        """
-        from ria_toolkit_oss.io.recording import to_sigmf
-
-        to_sigmf(filename=filename, path=path, recording=self, overwrite=overwrite)
-
-    def to_npy(
-        self, filename: Optional[str] = None, path: Optional[os.PathLike | str] = None, overwrite: bool = False
-    ) -> str:
-        """Write recording to ``.npy`` binary file.
-
-        :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
-        :type filename: os.PathLike or str, optional
-        :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
-        :type path: os.PathLike or str, optional
-
-        :raises IOError: If there is an issue encountered during the file writing process.
-
-        :return: Path where the file was saved.
-        :rtype: str
-
-        **Examples:**
-
-        Create a recording and save it to a .npy file:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        >>>     "sample_rate": 1e6,
-        >>>     "center_frequency": 2.44e9,
-        >>> }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.to_npy()
-        """
-        from ria_toolkit_oss.io.recording import to_npy
-
-        to_npy(recording=self, filename=filename, path=path, overwrite=overwrite)
-
-    def to_wav(
-        self,
-        filename: Optional[str] = None,
-        path: Optional[os.PathLike | str] = None,
-        target_sample_rate: Optional[int] = 48000,
-        bits_per_sample: int = 32,
-        overwrite: bool = False,
-    ) -> str:
-        """Write recording to WAV file with embedded YAML metadata.
-
-        WAV format uses stereo audio with I (in-phase) in left channel and Q (quadrature) in right channel.
-        Metadata is stored in standard LIST INFO chunks with RF-specific metadata encoded as YAML
-        in the ICMT (comment) field for human readability.
-
-        :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
-        :type filename: os.PathLike or str, optional
-        :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
-        :type path: os.PathLike or str, optional
-        :param target_sample_rate: Sample rate stored in the WAV header when no sample_rate metadata
-            is present. IQ samples are written without decimation or interpolation. Default is 48000 Hz.
-        :type target_sample_rate: int, optional
-        :param bits_per_sample: Bits per sample (32 for float32, 16 for int16). Default is 32.
-        :type bits_per_sample: int, optional
-        :param overwrite: Whether to overwrite existing files. Default is False.
-        :type overwrite: bool, optional
-
-        :raises IOError: If there is an issue encountered during the file writing process.
-
-        :return: Path where the file was saved.
-        :rtype: str
-
-        **Examples:**
-
-        Create a recording and save it to a .wav file:
-
-        >>> import numpy
-        >>> from utils.data import Recording
-        >>> samples = numpy.exp(1j * 2 * numpy.pi * 0.1 * numpy.arange(10000))
-        >>> metadata = {"sample_rate": 1e6, "center_frequency": 915e6}
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.to_wav()
-        """
-        from ria_toolkit_oss.io.recording import to_wav
-
-        return to_wav(
-            recording=self,
-            filename=filename,
-            path=path,
-            target_sample_rate=target_sample_rate,
-            bits_per_sample=bits_per_sample,
-            overwrite=overwrite,
-        )
-
-    def to_blue(
-        self,
-        filename: Optional[str] = None,
-        path: Optional[os.PathLike | str] = None,
-        data_format: str = "CI",
-        overwrite: bool = False,
-    ) -> str:
-        """Write recording to MIDAS Blue file format.
-
-        MIDAS Blue is a legacy RF file format with a 512-byte binary header.
-        Commonly used with X-Midas and other RF/radar signal processing tools.
-
-        :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
-        :type filename: os.PathLike or str, optional
-        :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
-        :type path: os.PathLike or str, optional
-        :param data_format: Format code (default 'CI' = complex int16).
-            Common formats: 'CI' (complex int16), 'CF' (complex float32), 'CD' (complex float64).
-            Integer formats require the IQ samples to already be scaled within [-1, 1).
-        :type data_format: str, optional
-        :param overwrite: Whether to overwrite existing files. Default is False.
-        :type overwrite: bool, optional
-
-        :raises IOError: If there is an issue encountered during the file writing process.
-
-        :return: Path where the file was saved.
-        :rtype: str
-
-        **Examples:**
-
-        Create a recording and save it to a .blue file:
-
-        >>> import numpy
-        >>> from utils.data import Recording
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {"sample_rate": 1e6, "center_frequency": 2.44e9}
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> recording.to_blue()
-        """
-        from ria_toolkit_oss.io.recording import to_blue
-
-        return to_blue(recording=self, filename=filename, path=path, data_format=data_format, overwrite=overwrite)
-
-    def trim(self, num_samples: int, start_sample: Optional[int] = 0) -> Recording:
-        """Trim Recording samples to a desired length, shifting annotations to maintain alignment.
-
-        :param start_sample: The start index of the desired trimmed recording. Defaults to 0.
-        :type start_sample: int, optional
-        :param num_samples: The number of samples that the output trimmed recording will have.
-        :type num_samples: int
-        :raises IndexError: If start_sample + num_samples is greater than the length of the recording.
-        :raises IndexError: If sample_start < 0 or num_samples < 0.
-
-        :return: The trimmed Recording.
-        :rtype: Recording
-
-        **Examples:**
-
-        Create a recording and trim it:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64)
-        >>> metadata = {
-        ...     "sample_rate": 1e6,
-        ...     "center_frequency": 2.44e9,
-        ... }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> print(len(recording))
-        10000
-
-        >>> trimmed_recording = recording.trim(start_sample=1000, num_samples=1000)
-        >>> print(len(trimmed_recording))
-        1000
-        """
-
-        if start_sample < 0:
-            raise IndexError("start_sample cannot be < 0.")
-        elif start_sample + num_samples > len(self):
-            raise IndexError(
-                f"start_sample {start_sample} + num_samples {num_samples} > recording length {len(self)}."
-            )
-
-        end_sample = start_sample + num_samples
-
-        data = self.data[:, start_sample:end_sample]
-
-        new_annotations = copy.deepcopy(self.annotations)
-        trimmed_annotations = []
-        for annotation in new_annotations:
-            # skip annotations entirely outside the trim window
-            if annotation.sample_start + annotation.sample_count <= start_sample:
-                continue
-            if annotation.sample_start >= end_sample:
-                continue
-
-            # trim annotation if it goes outside the trim boundaries
-            if annotation.sample_start < start_sample:
-                annotation.sample_count = annotation.sample_count - (start_sample - annotation.sample_start)
-                annotation.sample_start = start_sample
-
-            if annotation.sample_start + annotation.sample_count > end_sample:
-                annotation.sample_count = end_sample - annotation.sample_start
-
-            # shift annotation to align with the new start point
-            annotation.sample_start = annotation.sample_start - start_sample
-            trimmed_annotations.append(annotation)
-
-        return Recording(data=data, metadata=self.metadata, annotations=trimmed_annotations)
-
-    def normalize(self) -> Recording:
-        """Scale the recording data, relative to its maximum value, so that the magnitude of the maximum sample is 1.
-
-        :return: Recording where the maximum sample amplitude is 1.
-        :rtype: Recording
-
-        **Examples:**
-
-        Create a recording with maximum amplitude 0.5 and normalize to a maximum amplitude of 1:
-
-        >>> import numpy
-        >>> from ria_toolkit_oss.datatypes import Recording
-
-        >>> samples = numpy.ones(10000, dtype=numpy.complex64) * 0.5
-        >>> metadata = {
-        ...     "sample_rate": 1e6,
-        ...     "center_frequency": 2.44e9,
-        ... }
-
-        >>> recording = Recording(data=samples, metadata=metadata)
-        >>> print(numpy.max(numpy.abs(recording.data)))
-        0.5
-
-        >>> normalized_recording = recording.normalize()
-        >>> print(numpy.max(numpy.abs(normalized_recording.data)))
-        1
-        """
-        max_val = np.max(abs(self.data))
-        if max_val == 0:
-            raise ValueError("Cannot normalize a recording with all-zero data.")
-        scaled_data = self.data / max_val
-        return Recording(data=scaled_data, metadata=self.metadata, annotations=self.annotations)
-
-    def __len__(self) -> int:
-        """The length of a recording is defined by the number of complex samples in each channel of the recording."""
-        return self.shape[1]
-
-    def __eq__(self, other: Recording) -> bool:
-        """Two Recordings are equal if all data, metadata, and annotations are the same."""
-
-        # counter used to allow for differently ordered annotation lists
-        return (
-            np.array_equal(self.data, other.data)
-            and self.metadata == other.metadata
-            and self.annotations == other.annotations
-        )
-
-    def __ne__(self, other: Recording) -> bool:
-        """Two Recordings are equal if all data, and metadata, and annotations are the same."""
-        return not self.__eq__(other=other)
-
-    def __iter__(self) -> Iterator:
-        self._index = 0
-        return self
-
-    def __next__(self) -> np.ndarray:
-        if self._index < self.n_chan:
-            to_ret = self.data[self._index]
-            self._index += 1
-            return to_ret
-        else:
-            raise StopIteration
-
-    def __getitem__(self, key: int | tuple[int] | slice) -> np.ndarray | np.complexfloating:
-        """If key is an integer, tuple of integers, or a slice, return the corresponding samples.
-
-        For arrays with 1,024 or fewer samples, return a copy of the recording data. For larger arrays, return a
-        read-only view. This prevents mutation at a distance while maintaining performance.
-        """
-        if isinstance(key, (int, tuple, slice)):
-            v = self._data[key]
-            if isinstance(v, np.complexfloating):
-                return v
-            elif v.size > 1024:
-                v.setflags(write=False)  # Make view read-only.
-                return v
-            else:
-                return v.copy()
-
-        else:
-            raise ValueError(f"Key must be an integer, tuple, or slice but was {type(key)}.")
-
-    def __setitem__(self, *args, **kwargs) -> None:
-        """Raise an error if an attempt is made to assign to the recording."""
-        raise ValueError("Assignment to Recording is not allowed.")
-
-
-def generate_recording_id(data: np.ndarray, timestamp: Optional[float | int] = None) -> str:
-    """Generate unique 64-character recording ID. The recording ID is generated by hashing the recording data with
-    the datetime that the recording data was generated. If no datatime is provided, the current datatime is used.
-
-    :param data: Tape of IQ samples, as a NumPy array.
-    :type data: np.ndarray
-    :param timestamp: Unix timestamp in seconds. Defaults to None.
-    :type timestamp: float or int, optional
-
-    :return: 256-character hash, to be used as the recording ID.
-    :rtype: str
-    """
-    if timestamp is None:
-        timestamp = time.time()
-
-    byte_sequence = data.tobytes() + str(timestamp).encode("utf-8")
-    sha256_hash = hashlib.sha256(byte_sequence)
-
-    return sha256_hash.hexdigest()
-
-
-def _is_jsonable(x: Any) -> bool:
-    """
-    :return: True if x is JSON serializable, False otherwise.
-    """
-    try:
-        json.dumps(x)
-        return True
-    except (TypeError, OverflowError):
-        return False
-
-
-def _is_valid_metadata_key(key: Any) -> bool:
-    """
-    :return: True if key is a valid metadata key, False otherwise.
-    """
-    if isinstance(key, str) and key.islower() and re.match(pattern=r"^[a-z_]+$", string=key) is not None:
-        return True
-
-    else:
-        return False

src/ria_toolkit_oss/io/recording.py

@@ -1,5 +1,5 @@
 """
-Utilities for input/output operations on the ria_toolkit_oss.datatypes.Recording object.
+Utilities for input/output operations on the ria_toolkit_oss.data.Recording object.
 """
 
 import datetime
@@ -19,8 +19,8 @@ from quantiphy import Quantity
 from sigmf import SigMFFile, sigmffile
 from sigmf.utils import get_data_type_str
 
-from ria_toolkit_oss.datatypes import Annotation
+from ria_toolkit_oss.data import Annotation
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 _BLUE_META_PREFIX = "META_"
 _BLUE_META_TAG_MAX_LEN = 60
@@ -64,7 +64,7 @@ def to_npy(
     """Write recording to ``.npy`` binary file.
 
     :param recording: The recording to be written to file.
-    :type recording: ria_toolkit_oss.datatypes.Recording
+    :type recording: ria_toolkit_oss.data.Recording
     :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
     :type filename: os.PathLike or str, optional
     :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
@@ -135,7 +135,7 @@ def from_npy(file: os.PathLike | str, legacy: bool = False) -> Recording:
     :raises IOError: If there is an issue encountered during the file reading process.
 
     :return: The recording, as initialized from the ``.npy`` file.
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
     """
 
     filename, extension = os.path.splitext(file)
@@ -161,7 +161,7 @@ def from_npy(file: os.PathLike | str, legacy: bool = False) -> Recording:
             try:
                 raw_ann = np.load(f, allow_pickle=False)
                 ann_list = json.loads(raw_ann.tobytes().decode())
-                from ria_toolkit_oss.datatypes.annotation import Annotation
+                from ria_toolkit_oss.data.annotation import Annotation
 
                 annotations = [Annotation(**a) for a in ann_list]
             except EOFError:
@@ -175,6 +175,15 @@ def from_npy(file: os.PathLike | str, legacy: bool = False) -> Recording:
             )
             data = first  # already loaded without pickle (numeric array)
             metadata = np.load(f, allow_pickle=True).tolist()
+            # Normalize namespaced keys (e.g. "BlockGenerator:Foo:sample_rate") to
+            # their bare equivalents so downstream code can find them reliably.
+            _STANDARD_KEYS = {"sample_rate", "center_frequency", "bandwidth"}
+            if isinstance(metadata, dict):
+                for k in list(metadata):
+                    if ":" in k:
+                        bare = k.rsplit(":", 1)[-1]
+                        if bare in _STANDARD_KEYS and bare not in metadata:
+                            metadata[bare] = metadata[k]
             try:
                 annotations = list(np.load(f, allow_pickle=True))
             except EOFError:
@@ -198,7 +207,7 @@ def from_npy_legacy(file: os.PathLike | str) -> Recording:
     :raises IOError: If there is an issue encountered during the file reading process.
 
     :return: The recording, as initialized from the legacy ``.npy`` file.
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
 
     **Examples:**
 
@@ -270,7 +279,7 @@ def to_sigmf(
     The SigMF io format is defined by the `SigMF Specification Project <https://github.com/sigmf/SigMF>`_
 
     :param recording: The recording to be written to file.
-    :type recording: ria_toolkit_oss.datatypes.Recording
+    :type recording: ria_toolkit_oss.data.Recording
     :param filename: The name of the file where the recording is to be saved. Defaults to auto generated filename.
     :type filename: os.PathLike or str, optional
     :param path: The directory path to where the recording is to be saved. Defaults to recordings/.
@@ -381,7 +390,7 @@ def from_sigmf(file: os.PathLike | str) -> Recording:
     :raises IOError: If there is an issue encountered during the file reading process.
 
     :return: The recording, as initialized from the SigMF files.
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
     """
 
     file = str(file)
@@ -443,7 +452,7 @@ def to_wav(
     in the ICMT (comment) field for human readability.
 
     :param recording: The recording to be written to file.
-    :type recording: ria_toolkit_oss.datatypes.Recording
+    :type recording: ria_toolkit_oss.data.Recording
     :param filename: The name of the file where the recording is to be saved.
         Defaults to auto-generated filename.
     :type filename: str, optional
@@ -553,7 +562,7 @@ def from_wav(file: os.PathLike | str) -> Recording:
     :raises ValueError: If file is not stereo or has unsupported format.
 
     :return: The recording, as initialized from the WAV file.
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
     """
     import wave
 
@@ -635,7 +644,7 @@ def to_blue(
     Commonly used with X-Midas and other RF/radar signal processing tools.
 
     :param recording: The recording to be written to file.
-    :type recording: ria_toolkit_oss.datatypes.Recording
+    :type recording: ria_toolkit_oss.data.Recording
     :param filename: The name of the file where the recording is to be saved.
         Defaults to auto-generated filename.
     :type filename: str, optional
@@ -792,7 +801,7 @@ def from_blue(file: os.PathLike | str) -> Recording:
     :raises ValueError: If file format is not valid or unsupported.
 
     :return: The recording, as initialized from the Blue file.
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
     """
     filename = str(file)
     if not filename.endswith(".blue"):
@@ -917,7 +926,7 @@ def load_recording(file: os.PathLike) -> Recording:
     :raises ValueError: If the inferred file extension is not supported.
 
     :return: The recording, as initialized from file(s).
-    :rtype: ria_toolkit_oss.datatypes.Recording
+    :rtype: ria_toolkit_oss.data.Recording
     """
     _, extension = os.path.splitext(file)
     extension = extension.lstrip(".")

src/ria_toolkit_oss/orchestration/campaign.py

@@ -233,6 +233,9 @@ class TransmitterConfig:
     # For sdr_remote control — keys: host, ssh_user, ssh_key_path, device_type, device_id, zmq_port
     sdr_remote: Optional[dict] = None
 
+    # For sdr_agent control — keys: modulation, order, symbol_rate, center_frequency, filter, rolloff
+    sdr_agent: Optional[dict] = None
+
     @classmethod
     def from_dict(cls, d: dict) -> "TransmitterConfig":
         schedule = [CaptureStep.from_dict(s) for s in d.get("schedule", [])]
@@ -244,6 +247,7 @@ class TransmitterConfig:
             script=d.get("script"),
             device=d.get("device"),
             sdr_remote=d.get("sdr_remote"),
+            sdr_agent=d.get("sdr_agent"),
         )
 
 
@@ -272,6 +276,7 @@ class OutputConfig:
     path: str = "recordings"
     device_id: Optional[str] = None  # for device-profile campaigns
     repo: Optional[str] = None
+    folder: Optional[str] = None  # repo subfolder: None = use campaign name, "" = no subfolder, str = custom
 
     @classmethod
     def from_dict(cls, d: dict) -> "OutputConfig":
@@ -280,6 +285,7 @@ class OutputConfig:
             path=str(d.get("path", "recordings")),
             device_id=d.get("device_id"),
             repo=d.get("repo"),
+            folder=d.get("folder"),
         )
 
 
@@ -293,6 +299,7 @@ class CampaignConfig:
     qa: QAConfig = field(default_factory=QAConfig)
     output: OutputConfig = field(default_factory=OutputConfig)
     mode: str = "controlled_testbed"
+    loops: int = 1  # repeat full schedule this many times; labels get _run{N:02d} suffix
 
     # ---------------------------------------------------------------------------
     # Loaders
@@ -320,6 +327,7 @@ class CampaignConfig:
         return cls(
             name=safe_name,
             mode=str(campaign_meta.get("mode", "controlled_testbed")),
+            loops=max(1, int(campaign_meta.get("loops", 1))),
             recorder=RecorderConfig.from_dict(raw["recorder"]),
             transmitters=transmitters,
             qa=QAConfig.from_dict(raw.get("qa", {})),
@@ -384,6 +392,7 @@ class CampaignConfig:
         return cls(
             name=safe_name,
             mode=str(campaign_meta.get("mode", "controlled_testbed")),
+            loops=max(1, int(campaign_meta.get("loops", 1))),
             recorder=RecorderConfig.from_dict(raw["recorder"]),
             transmitters=transmitters,
             qa=QAConfig.from_dict(raw.get("qa", {})),
@@ -486,9 +495,9 @@ class CampaignConfig:
         )
 
     def total_capture_time_s(self) -> float:
-        """Sum of all step durations across all transmitters."""
+        """Sum of all step durations across all transmitters and loops."""
-        return sum(step.duration for tx in self.transmitters for step in tx.schedule)
+        return sum(step.duration for tx in self.transmitters for step in tx.schedule) * self.loops
 
     def total_steps(self) -> int:
-        """Total number of capture steps across all transmitters."""
+        """Total number of capture steps across all transmitters and loops."""
-        return sum(len(tx.schedule) for tx in self.transmitters)
+        return sum(len(tx.schedule) for tx in self.transmitters) * self.loops

src/ria_toolkit_oss/orchestration/executor.py

@@ -5,17 +5,19 @@ from __future__ import annotations
 import json
 import logging
 import subprocess
+import threading
 import time
-from dataclasses import dataclass, field
+from dataclasses import dataclass, field, replace
 from pathlib import Path
 from typing import Callable, Optional
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.io.recording import to_sigmf
 
 from .campaign import CampaignConfig, CaptureStep, TransmitterConfig
 from .labeler import build_output_filename, label_recording
 from .qa import QAResult, check_recording
+from .tx_executor import TxExecutor
 
 logger = logging.getLogger(__name__)
 
@@ -169,6 +171,21 @@ def _run_script(script: str, *args: str, timeout: float = 15.0) -> str:
 # ---------------------------------------------------------------------------
 
 
+def _extract_tx_params(transmitter: TransmitterConfig) -> dict | None:
+    """Build a tx_params dict from a transmitter's signal config for SigMF labeling.
+
+    For sdr_agent transmitters, returns the synthetic generation parameters
+    (modulation, order, symbol_rate, etc.) so recordings capture what was
+    transmitted. Returns None for control methods without signal-level params.
+    """
+    sdr_agent_cfg = getattr(transmitter, "sdr_agent", None)
+    if not sdr_agent_cfg:
+        return None
+    # Extract known signal-level fields; ignore infra fields
+    _INFRA_KEYS = {"node_id", "session_code"}
+    return {k: v for k, v in sdr_agent_cfg.items() if k not in _INFRA_KEYS and v is not None}
+
+
 class CampaignExecutor:
     """Executes a :class:`CampaignConfig` end-to-end.
 
@@ -192,11 +209,14 @@ class CampaignExecutor:
         config: CampaignConfig,
         progress_cb: Optional[Callable[[int, int, StepResult], None]] = None,
         verbose: bool = False,
+        skip_local_tx: bool = False,
     ):
         self.config = config
         self.progress_cb = progress_cb
+        self.skip_local_tx = skip_local_tx
         self._sdr = None
         self._remote_tx_controllers: dict = {}
+        self._tx_executors: dict[str, tuple] = {}  # tx_id → (TxExecutor, stop_event, thread)
 
         if verbose:
             logging.basicConfig(level=logging.DEBUG)
@@ -216,10 +236,12 @@ class CampaignExecutor:
         """
         result = CampaignResult(campaign_name=self.config.name)
 
+        loops = self.config.loops
         logger.info(
             f"Starting campaign '{self.config.name}': "
-            f"{self.config.total_steps()} steps, "
+            f"{self.config.total_steps()} steps"
-            f"~{self.config.total_capture_time_s():.0f}s capture time"
+            + (f" ({self.config.total_steps() // loops} × {loops} loops)" if loops > 1 else "")
+            + f", ~{self.config.total_capture_time_s():.0f}s capture time"
         )
 
         self._init_sdr()
@@ -228,29 +250,36 @@ class CampaignExecutor:
             total = self.config.total_steps()
             step_index = 0
 
-            for transmitter in self.config.transmitters:
+            for loop_idx in range(loops):
-                logger.info(f"Transmitter: {transmitter.id} ({len(transmitter.schedule)} steps)")
+                if loops > 1:
-                for step in transmitter.schedule:
+                    logger.info(f"Loop {loop_idx + 1}/{loops}")
-                    step_result = self._execute_step(transmitter, step)
+                for transmitter in self.config.transmitters:
-                    result.steps.append(step_result)
+                    logger.info(f"Transmitter: {transmitter.id} ({len(transmitter.schedule)} steps)")
-                    step_index += 1
+                    for step in transmitter.schedule:
+                        looped_step = replace(step, label=f"{step.label}_run{loop_idx + 1:02d}") if loops > 1 else step
+                        step_result = self._execute_step(transmitter, looped_step)
+                        result.steps.append(step_result)
+                        step_index += 1
 
-                    if self.progress_cb:
+                        if self.progress_cb:
-                        self.progress_cb(step_index, total, step_result)
+                            self.progress_cb(step_index, total, step_result)
 
-                    if step_result.error:
+                        if step_result.error:
-                        logger.warning(f"Step '{step.label}' error: {step_result.error}")
+                            logger.warning(f"Step '{looped_step.label}' error: {step_result.error}")
-                    elif step_result.qa.flagged:
+                        elif step_result.qa.flagged:
-                        logger.warning(f"Step '{step.label}' flagged for review: " + "; ".join(step_result.qa.issues))
+                            logger.warning(
-                    else:
+                                f"Step '{looped_step.label}' flagged for review: " + "; ".join(step_result.qa.issues)
-                        logger.info(
+                            )
-                            f"Step '{step.label}' OK "
+                        else:
-                            f"(SNR {step_result.qa.snr_db:.1f} dB, "
+                            logger.info(
-                            f"{step_result.qa.duration_s:.1f}s)"
+                                f"Step '{looped_step.label}' OK "
-                        )
+                                f"(SNR {step_result.qa.snr_db:.1f} dB, "
+                                f"{step_result.qa.duration_s:.1f}s)"
+                            )
         finally:
             self._close_sdr()
             self._close_remote_tx_controllers()
+            self._close_tx_executors()
 
         result.end_time = time.time()
         logger.info(
@@ -325,6 +354,12 @@ class CampaignExecutor:
                 logger.warning(f"Error closing remote Tx controller {tx_id}: {exc}")
         self._remote_tx_controllers.clear()
 
+    def _close_tx_executors(self) -> None:
+        for tx_id, (_, stop_event, t) in list(self._tx_executors.items()):
+            stop_event.set()
+            t.join(timeout=5.0)
+        self._tx_executors.clear()
+
     def _record(self, duration_s: float) -> Recording:
         """Capture ``duration_s`` seconds of IQ samples."""
         num_samples = int(duration_s * self.config.recorder.sample_rate)
@@ -369,6 +404,7 @@ class CampaignExecutor:
             step=step,
             capture_timestamp=capture_timestamp,
             campaign_name=self.config.name,
+            tx_params=_extract_tx_params(transmitter),
         )
 
         # QA
@@ -437,6 +473,30 @@ class CampaignExecutor:
             # Start transmission in background; _record() runs concurrently
             ctrl.transmit_async(step.duration + 1.0)
 
+        elif transmitter.control_method == "sdr_agent":
+            if self.skip_local_tx:
+                logger.debug(f"skip_local_tx — TX for '{transmitter.id}' delegated to TX agent node")
+                return
+            if not transmitter.sdr_agent:
+                logger.warning(f"Transmitter '{transmitter.id}' has no sdr_agent config — skipping")
+                return
+            step_dict: dict = {"label": step.label, "duration": step.duration + 1.0}
+            if step.power_dbm is not None:
+                step_dict["power_dbm"] = step.power_dbm
+            tx_config = {
+                "id": transmitter.id,
+                "sdr_agent": transmitter.sdr_agent,
+                "schedule": [step_dict],
+            }
+            rec = self.config.recorder
+            tx_device = transmitter.device or rec.device
+            sdr_device = _DEVICE_ALIASES.get(tx_device.lower(), tx_device.lower())
+            stop_event = threading.Event()
+            executor = TxExecutor(tx_config, sdr_device=sdr_device, stop_event=stop_event)
+            t = threading.Thread(target=executor.run, daemon=True, name=f"tx-{transmitter.id}")
+            self._tx_executors[transmitter.id] = (executor, stop_event, t)
+            t.start()
+
         else:
             logger.warning(f"Unknown control method '{transmitter.control_method}' — skipping")
 
@@ -459,6 +519,13 @@ class CampaignExecutor:
             if ctrl is not None:
                 ctrl.wait_transmit(timeout=step.duration + 10.0)
 
+        elif transmitter.control_method == "sdr_agent":
+            entry = self._tx_executors.pop(transmitter.id, None)
+            if entry is not None:
+                _, stop_event, t = entry
+                stop_event.set()
+                t.join(timeout=step.duration + 10.0)
+
     @staticmethod
     def _step_params_json(transmitter: TransmitterConfig, step: CaptureStep) -> str:
         """Serialise step parameters to a JSON string for the control script."""

src/ria_toolkit_oss/orchestration/labeler.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 from typing import Optional
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 from .campaign import CaptureStep
 
@@ -15,6 +15,7 @@ def label_recording(
     step: CaptureStep,
     capture_timestamp: float,
     campaign_name: Optional[str] = None,
+    tx_params: Optional[dict] = None,
 ) -> Recording:
     """Apply device identity and capture configuration labels to a recording's metadata.
 
@@ -27,6 +28,9 @@ def label_recording(
         step: The capture step that was active during this recording.
         capture_timestamp: Unix timestamp (float) of when capture started.
         campaign_name: Optional campaign name for cross-recording reference.
+        tx_params: Optional dict of transmitter signal parameters (e.g. modulation,
+            order, symbol_rate) written as ``ria:tx_<key>`` fields so downstream
+            training pipelines know what was transmitted into the recording.
 
     Returns:
         The same recording with updated metadata.
@@ -57,6 +61,11 @@ def label_recording(
     if step.power_dbm is not None:
         recording.update_metadata("tx_power_dbm", step.power_dbm)
 
+    # Transmitter signal parameters (e.g. from sdr_agent synthetic generation)
+    if tx_params:
+        for key, value in tx_params.items():
+            recording.update_metadata(f"tx_{key}", value)
+
     return recording
 
 

src/ria_toolkit_oss/orchestration/qa.py

@@ -6,7 +6,7 @@ from dataclasses import dataclass, field
 
 import numpy as np
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 from .campaign import QAConfig
 

src/ria_toolkit_oss/orchestration/tx_executor.py

@@ -0,0 +1,299 @@
+"""TX campaign executor — synthesises and transmits signals via a local SDR.
+
+The TxExecutor receives a transmitter config dict (matching the
+``sdr_agent`` control method's schema) and a step schedule, then for each
+step builds a signal chain with the block generator and transmits it via
+the local SDR device.
+
+Supported modulations (``modulation`` field in config):
+    BPSK, QPSK, 8PSK, 16QAM, 64QAM, 256QAM, FSK, OOK, GMSK, OQPSK
+
+Example config dict (matches CampaignConfig transmitter with
+``control_method: sdr_agent``)::
+
+    {
+        "id": "synthetic-tx",
+        "type": "sdr",
+        "control_method": "sdr_agent",
+        "sdr_agent": {
+            "modulation": "QPSK",
+            "order": 4,
+            "symbol_rate": 1000000,
+            "center_frequency": 0.0,
+            "filter": "rrc",
+            "rolloff": 0.35
+        },
+        "schedule": [
+            {"label": "step1", "duration": 10, "power_dbm": -10}
+        ]
+    }
+"""
+
+from __future__ import annotations
+
+import logging
+import threading
+from typing import Any
+
+logger = logging.getLogger(__name__)
+
+
+def _parse_hz(val: object) -> float:
+    """Parse a frequency value that may be a float (Hz) or a string like '2.45GHz'."""
+    if isinstance(val, (int, float)):
+        return float(val)
+    s = str(val).strip()
+    for suffix, mult in (("GHz", 1e9), ("MHz", 1e6), ("kHz", 1e3), ("Hz", 1.0)):
+        if s.endswith(suffix):
+            return float(s[: -len(suffix)]) * mult
+    return float(s)
+
+
+def _parse_seconds(val: object) -> float:
+    """Parse a duration value that may be a float (seconds) or a string like '5s'."""
+    if isinstance(val, (int, float)):
+        return float(val)
+    s = str(val).strip()
+    return float(s[:-1]) if s.endswith("s") else float(s)
+
+
+# Mapping from modulation name → (PSK/QAM order, generator_type)
+# 'psk' uses PSKGenerator, 'qam' uses QAMGenerator
+_MOD_TABLE: dict[str, tuple[int, str]] = {
+    "BPSK": (1, "psk"),
+    "QPSK": (2, "psk"),
+    "8PSK": (3, "psk"),
+    "16QAM": (4, "qam"),
+    "64QAM": (6, "qam"),
+    "256QAM": (8, "qam"),
+}
+
+_SPECIAL_MODS = {"FSK", "OOK", "GMSK", "OQPSK"}
+
+# usrp-uhd-client's tx_recording() streams 2 000-sample chunks and loops the
+# source buffer for the full tx_time, so only this many samples ever need to
+# be in RAM regardless of step duration or sample rate.
+# 50 000 complex64 samples ≈ 400 kB — enough spectral diversity for looping.
+_SYNTH_BLOCK_SAMPLES = 50_000
+
+
+class TxExecutor:
+    """Synthesise and transmit a signal campaign via a local SDR.
+
+    Args:
+        config: Transmitter config dict (must have ``sdr_agent`` sub-dict with
+            modulation params, and ``schedule`` list of step dicts).
+        sdr_device: SDR device name to open in TX mode (e.g. "pluto", "usrp").
+        stop_event: External event that aborts the TX loop mid-step.
+    """
+
+    def __init__(
+        self,
+        config: dict,
+        sdr_device: str = "unknown",
+        stop_event: threading.Event | None = None,
+    ) -> None:
+        self.config = config
+        self.sdr_device = sdr_device
+        self.stop_event = stop_event or threading.Event()
+        self._sdr: Any = None
+
+    def run(self) -> None:
+        """Execute all steps in the schedule, transmitting for each step duration."""
+        agent_cfg: dict = self.config.get("sdr_agent") or {}
+        schedule: list[dict] = self.config.get("schedule") or []
+
+        if not schedule:
+            logger.warning("TxExecutor: no schedule steps — nothing to transmit")
+            return
+
+        modulation: str = agent_cfg.get("modulation", "QPSK").upper()
+        symbol_rate: float = float(agent_cfg.get("symbol_rate", 1e6))
+        center_freq: float = _parse_hz(agent_cfg.get("center_frequency", 0.0))
+        filter_type: str = agent_cfg.get("filter", "rrc").lower()
+        rolloff: float = float(agent_cfg.get("rolloff", 0.35))
+        loops: int = max(1, int(self.config.get("loops", 1)))
+
+        # Upsampling factor: samples_per_symbol, fixed at 8 for SDR compatibility.
+        sps = 8
+        sample_rate = symbol_rate * sps
+
+        self._init_sdr(sample_rate, center_freq)
+        try:
+            for loop_idx in range(loops):
+                if self.stop_event.is_set():
+                    break
+                if loops > 1:
+                    logger.info("TX loop %d/%d", loop_idx + 1, loops)
+                for step in schedule:
+                    if self.stop_event.is_set():
+                        break
+                    looped_step = (
+                        {**step, "label": f"{step.get('label', 'step')}_run{loop_idx + 1:02d}"} if loops > 1 else step
+                    )
+                    self._execute_step(looped_step, modulation, sps, symbol_rate, filter_type, rolloff)
+        finally:
+            self._close_sdr()
+
+    def _execute_step(
+        self,
+        step: dict,
+        modulation: str,
+        sps: int,
+        symbol_rate: float,
+        filter_type: str,
+        rolloff: float,
+    ) -> None:
+        duration: float = _parse_seconds(step.get("duration", 10.0))
+        label: str = step.get("label", "step")
+        gain: float = float(step.get("power_dbm") or 0.0)
+        sample_rate = symbol_rate * sps
+
+        logger.info(
+            "TX step '%s': %.0f s, %s @ %.3f MHz (sps=%d, filter=%s)",
+            label,
+            duration,
+            modulation,
+            symbol_rate / 1e6,
+            sps,
+            filter_type,
+        )
+
+        num_samples = int(duration * sample_rate)
+
+        # Synthesise a short representative block. tx_recording() loops this
+        # buffer for the full tx_time using a 2 000-sample streaming callback,
+        # so peak memory is O(_SYNTH_BLOCK_SAMPLES) regardless of duration.
+        block_size = min(num_samples, _SYNTH_BLOCK_SAMPLES)
+        signal = self._synthesise(modulation, sps, block_size, filter_type, rolloff)
+
+        if self._sdr is not None:
+            try:
+                # Apply gain update if SDR supports it
+                if hasattr(self._sdr, "set_tx_gain"):
+                    self._sdr.set_tx_gain(gain)
+                self._sdr.tx_recording(signal, tx_time=duration)
+            except Exception as exc:
+                logger.error("TX step '%s' SDR error: %s", label, exc)
+        else:
+            # No SDR available — simulate by sleeping for the step duration.
+            logger.warning("TX step '%s': no SDR — simulating %.0f s delay", label, duration)
+            self.stop_event.wait(timeout=duration)
+
+    def _synthesise(
+        self,
+        modulation: str,
+        sps: int,
+        num_samples: int,
+        filter_type: str,
+        rolloff: float,
+    ):
+        """Build a block-generator chain and return IQ samples as a numpy array."""
+        try:
+            import numpy as np
+
+            from ria_toolkit_oss.signal.block_generator import (
+                BinarySource,
+                GMSKModulator,
+                Mapper,
+                OOKModulator,
+                OQPSKModulator,
+                RaisedCosineFilter,
+                RootRaisedCosineFilter,
+                Upsampling,
+            )
+            from ria_toolkit_oss.signal.block_generator.continuous_modulation.fsk_modulator import (
+                FSKModulator,
+            )
+        except ImportError as exc:
+            raise RuntimeError(f"ria_toolkit_oss block generator not available: {exc}") from exc
+
+        # ── Special modulations with their own source-connected modulator ──
+        if modulation in ("OOK", "GMSK", "OQPSK"):
+            src = BinarySource()
+            if modulation == "OOK":
+                mod = OOKModulator(src, samples_per_symbol=sps)
+            elif modulation == "GMSK":
+                mod = GMSKModulator(src, samples_per_symbol=sps)
+            else:
+                mod = OQPSKModulator(src, samples_per_symbol=sps)
+            recording = mod.record(num_samples)
+            flat = np.asarray(recording.data).flatten().astype(np.complex64)
+            if len(flat) < num_samples:
+                flat = np.tile(flat, num_samples // len(flat) + 1)
+            return flat[:num_samples]
+
+        if modulation == "FSK":
+            symbol_rate = num_samples / sps
+            bits_per_sym = 1  # 2-FSK
+            num_bits = max(num_samples // sps, 128) * bits_per_sym
+            bits = BinarySource()((1, num_bits))
+            mod = FSKModulator(
+                num_bits_per_symbol=bits_per_sym,
+                frequency_spacing=symbol_rate * 0.5,
+                symbol_duration=1.0 / max(symbol_rate, 1.0),
+                sampling_frequency=symbol_rate * sps,
+            )
+            flat = np.asarray(mod(bits)).flatten().astype(np.complex64)
+            if len(flat) < num_samples:
+                flat = np.tile(flat, num_samples // len(flat) + 1)
+            return flat[:num_samples]
+
+        # ── PSK / QAM via Mapper → Upsampling → pulse filter ──────────────
+        if modulation not in _MOD_TABLE:
+            logger.warning("Unknown modulation %r — defaulting to QPSK", modulation)
+            modulation = "QPSK"
+
+        bits_per_sym, gen_type = _MOD_TABLE[modulation]
+        mod_family = "QAM" if gen_type == "qam" else "PSK"
+
+        source = BinarySource()
+        mapper = Mapper(constellation_type=mod_family, num_bits_per_symbol=bits_per_sym)
+        upsampler = Upsampling(factor=sps)
+
+        mapper.connect_input([source])
+        upsampler.connect_input([mapper])
+
+        if filter_type in ("rrc",):
+            pulse_filter = RootRaisedCosineFilter(span_in_symbols=6, upsampling_factor=sps, beta=rolloff)
+            pulse_filter.connect_input([upsampler])
+            recording = pulse_filter.record(num_samples)
+        elif filter_type in ("rc",):
+            pulse_filter = RaisedCosineFilter(span_in_symbols=6, upsampling_factor=sps, beta=rolloff)
+            pulse_filter.connect_input([upsampler])
+            recording = pulse_filter.record(num_samples)
+        else:
+            # "none", "rect", "gaussian" — use upsampler output directly
+            recording = upsampler.record(num_samples)
+
+        flat = np.asarray(recording.data).flatten().astype(np.complex64)
+        if len(flat) < num_samples:
+            flat = np.tile(flat, num_samples // len(flat) + 1)
+        return flat[:num_samples]
+
+    def _init_sdr(self, sample_rate: float, center_freq: float) -> None:
+        try:
+            from ria_toolkit_oss.sdr import get_sdr_device
+
+            self._sdr = get_sdr_device(self.sdr_device)
+            self._sdr.init_tx(
+                sample_rate=sample_rate,
+                center_frequency=center_freq,
+                gain=0,
+                channel=0,
+                gain_mode="manual",
+            )
+            logger.info(
+                "TX SDR initialised: %s @ %.3f MHz, %.1f Msps", self.sdr_device, center_freq / 1e6, sample_rate / 1e6
+            )
+        except Exception as exc:
+            logger.warning("TX SDR init failed (%s) — will simulate: %s", self.sdr_device, exc)
+            self._sdr = None
+
+    def _close_sdr(self) -> None:
+        if self._sdr is not None:
+            try:
+                self._sdr.close()
+            except Exception as exc:
+                logger.debug("TX SDR close error: %s", exc)
+            self._sdr = None

src/ria_toolkit_oss/sdr/blade.py

@@ -5,7 +5,7 @@ from typing import Optional
 import numpy as np
 from bladerf import _bladerf
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.sdr import SDR, SDRError, SDRParameterError
 
 

src/ria_toolkit_oss/sdr/hackrf.py

@@ -4,7 +4,7 @@ from typing import Optional
 
 import numpy as np
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.sdr._external.libhackrf import HackRF as hrf
 from ria_toolkit_oss.sdr.sdr import SDR, SDRParameterError
 
@@ -58,7 +58,7 @@ class HackRF(SDR):
         :param channel: The channel the HackRF is set to. (Not actually used)
         :type channel: int
         :param gain_mode: 'absolute' passes gain directly to the sdr,
-        'relative' means that gain should be a negative value, and it will be subtracted from the max gain (40).
+            'relative' means that gain should be a negative value, and it will be subtracted from the max gain (40).
         :type gain_mode: str
         """
         print("Initializing RX")

src/ria_toolkit_oss/sdr/pluto.py

@@ -7,7 +7,7 @@ from typing import Optional
 import adi
 import numpy as np
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.sdr.sdr import (
     SDR,
     SDRError,

src/ria_toolkit_oss/sdr/rtlsdr.py

@@ -11,7 +11,7 @@ try:
 except ImportError as exc:  # pragma: no cover - dependency provided by end user
     raise ImportError("pyrtlsdr is required to use the RTLSDR class") from exc
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.sdr.sdr import SDR, SDRParameterError
 
 

src/ria_toolkit_oss/sdr/sdr.py

@@ -8,7 +8,7 @@ from typing import Optional
 import numpy as np
 import zmq
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 
 class SDR(ABC):

src/ria_toolkit_oss/sdr/usrp.py

@@ -6,7 +6,7 @@ from typing import Optional
 import numpy as np
 import uhd
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.sdr.sdr import SDR, SDRParameterError
 
 
@@ -54,7 +54,7 @@ class USRP(SDR):
         :param channel: The channel the USRP is set to.
         :type channel: int
         :param gain_mode: 'absolute' passes gain directly to the sdr,
-        'relative' means that gain should be a negative value, and it will be subtracted from the max gain.
+            'relative' means that gain should be a negative value, and it will be subtracted from the max gain.
         :type gain_mode: str
         :param rx_buffer_size: Internal buffer size for receiving samples. Defaults to 960000.
         :type rx_buffer_size: int
@@ -285,7 +285,7 @@ class USRP(SDR):
         :param channel: The channel the USRP is set to.
         :type channel: int
         :param gain_mode: 'absolute' passes gain directly to the sdr,
-        'relative' means that gain should be a negative value, and it will be subtracted from the max gain.
+            'relative' means that gain should be a negative value, and it will be subtracted from the max gain.
         :type gain_mode: str
         """
 

src/ria_toolkit_oss/server/app.py

@@ -3,7 +3,7 @@
 from fastapi import Depends, FastAPI
 
 from .auth import require_api_key
-from .routers import inference, orchestrator
+from .routers import conductor, inference
 
 
 def create_app(api_key: str = "") -> FastAPI:
@@ -28,9 +28,9 @@ def create_app(api_key: str = "") -> FastAPI:
     app.state.api_key = api_key
 
     app.include_router(
-        orchestrator.router,
+        conductor.router,
-        prefix="/orchestrator",
+        prefix="/conductor",
-        tags=["Orchestrator"],
+        tags=["Conductor"],
         dependencies=[Depends(require_api_key)],
     )
     app.include_router(

src/ria_toolkit_oss/server/models.py

@@ -7,7 +7,7 @@ from pathlib import Path
 from pydantic import BaseModel, field_validator
 
 # ---------------------------------------------------------------------------
-# Orchestrator
+# Conductor
 # ---------------------------------------------------------------------------
 
 

src/ria_toolkit_oss/server/routers/conductor.py

@@ -1,4 +1,4 @@
-"""Orchestrator routes: campaign deployment, status, and cancellation."""
+"""Conductor routes: campaign deployment, status, and cancellation."""
 
 from __future__ import annotations
 

src/ria_toolkit_oss/signal/basic_signal_generator.py

@@ -11,7 +11,7 @@ from scipy.signal import butter
 from scipy.signal import chirp as sci_chirp
 from scipy.signal import hilbert, lfilter
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 
 
 def sine(

src/ria_toolkit_oss/signal/block_generator/generators/pam_generator.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.signal.block_generator.generators.signal_generator import (
     SignalGenerator,
 )

src/ria_toolkit_oss/signal/block_generator/generators/psk_generator.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.signal.block_generator.generators.signal_generator import (
     SignalGenerator,
 )

src/ria_toolkit_oss/signal/block_generator/generators/qam_generator.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.signal.block_generator.generators.signal_generator import (
     SignalGenerator,
 )

src/ria_toolkit_oss/signal/block_generator/recordable_block.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.signal import Recordable
 from ria_toolkit_oss.signal.block_generator.block import Block
 

src/ria_toolkit_oss/signal/block_generator/recording_gen_wrapper.py

@@ -4,7 +4,7 @@ from datetime import datetime
 import click
 import numpy as np
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.signal.block_generator.mapping.mapper import Mapper
 from ria_toolkit_oss.signal.block_generator.multirate.upsampling import Upsampling
 from ria_toolkit_oss.signal.block_generator.pulse_shaping.raised_cosine_filter import (

src/ria_toolkit_oss/signal/block_generator/source/recording_source.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.signal.block_generator.data_types import DataType
 from ria_toolkit_oss.signal.block_generator.recordable_block import RecordableBlock
 from ria_toolkit_oss.signal.block_generator.source_block import SourceBlock

src/ria_toolkit_oss/signal/recordable.py

@@ -1,6 +1,6 @@
 from abc import ABC, abstractmethod
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 
 
 class Recordable(ABC):

src/ria_toolkit_oss/transforms/iq_augmentations.py

@@ -11,7 +11,7 @@ from typing import Optional
 import numpy as np
 from numpy.typing import ArrayLike
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.utils.array_conversion import convert_to_2xn
 
 # TODO: For round 2 of index generation, should j be at min 2 spots away from where it was to prevent adjacent patches.
@@ -29,7 +29,7 @@ def generate_awgn(signal: ArrayLike | Recording, snr: Optional[float] = 1) -> np
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param snr: The signal-to-noise ratio in dB. Default is 1.
     :type snr: float, optional
 
@@ -37,7 +37,7 @@ def generate_awgn(signal: ArrayLike | Recording, snr: Optional[float] = 1) -> np
 
     :return: A numpy array representing the generated noise which matches the SNR of `signal`. If `signal` is a
         Recording, returns a Recording object with its `data` attribute containing the generated noise array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2 + 5j, 1 + 8j]])
     >>> new_rec = generate_awgn(rec)
@@ -80,14 +80,14 @@ def time_reversal(signal: ArrayLike | Recording) -> np.ndarray | Recording:
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
 
     :raises ValueError: If `signal` is not CxN complex.
 
     :return: A numpy array containing the reversed I and Q data samples if `signal` is an array.
         If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing the
         reversed array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+2j, 3+4j, 5+6j]])
     >>> new_rec = time_reversal(rec)
@@ -123,14 +123,14 @@ def spectral_inversion(signal: ArrayLike | Recording) -> np.ndarray | Recording:
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
 
     :raises ValueError: If `signal` is not CxN complex.
 
     :return: A numpy array containing the original I and negated Q data samples if `signal` is an array.
         If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing the
         inverted array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[0+45j, 2-10j]])
     >>> new_rec = spectral_inversion(rec)
@@ -165,14 +165,14 @@ def channel_swap(signal: ArrayLike | Recording) -> np.ndarray | Recording:
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
 
     :raises ValueError: If `signal` is not CxN complex.
 
     :return: A numpy array containing the swapped I and Q data samples if `signal` is an array.
         If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing the
         swapped array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[10+20j, 7+35j]])
     >>> new_rec = channel_swap(rec)
@@ -207,14 +207,14 @@ def amplitude_reversal(signal: ArrayLike | Recording) -> np.ndarray | Recording:
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
 
     :raises ValueError: If `signal` is not CxN complex.
 
     :return: A numpy array containing the negated I and Q data samples if `signal` is an array.
         If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing the
         negated array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[4-3j, -5-2j, -9+1j]])
     >>> new_rec = amplitude_reversal(rec)
@@ -253,7 +253,7 @@ def drop_samples(  # noqa: C901  # TODO: Simplify function
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param max_section_size: Maximum allowable size of the section to be dropped and replaced. Default is 2.
     :type max_section_size: int, optional
     :param fill_type: Fill option used to replace dropped section of data (back-fill, front-fill, mean, zeros).
@@ -275,7 +275,7 @@ def drop_samples(  # noqa: C901  # TODO: Simplify function
     :return: A numpy array containing the I and Q data samples with replaced subsections if
         `signal` is an array. If `signal` is a `Recording`, returns a `Recording` object with its `data`
         attribute containing the array with dropped samples.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+5j, 1+8j, 6+4j, 3+7j, 4+9j]])
     >>> new_rec = drop_samples(rec)
@@ -346,7 +346,7 @@ def quantize_tape(
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param bin_number: The number of bins the signal should be divided into. Default is 4.
     :type bin_number: int, optional
     :param rounding_type: The type of rounding applied during processing. Default is "floor".
@@ -362,7 +362,7 @@ def quantize_tape(
     :return: A numpy array containing the quantized I and Q data samples if `signal` is an array.
         If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing
         the quantized array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 4+4j, 1+2j, 1+4j]])
     >>> new_rec = quantize_tape(rec)
@@ -421,7 +421,7 @@ def quantize_parts(
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param max_section_size: Maximum allowable size of the section to be quantized. Default is 2.
     :type max_section_size: int, optional
     :param bin_number: The number of bins the signal should be divided into. Default is 4.
@@ -439,7 +439,7 @@ def quantize_parts(
     :return: A numpy array containing the I and Q data samples with quantized subsections if `signal`
         is an array. If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute
         containing the partially quantized array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+5j, 1+8j, 6+4j, 3+7j, 4+9j]])
     >>> new_rec = quantize_parts(rec)
@@ -510,7 +510,7 @@ def magnitude_rescale(
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param starting_bounds: The bounds (inclusive) as indices in which the starting position of the rescaling occurs.
         Default is None, but if user does not assign any bounds, the bounds become (random index, N-1).
     :type starting_bounds: tuple, optional
@@ -522,7 +522,7 @@ def magnitude_rescale(
     :return: A numpy array containing the I and Q data samples with the rescaled magnitude after the random
         starting point if `signal` is an array. If `signal` is a `Recording`, returns a `Recording`
         object with its `data` attribute containing the rescaled array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+5j, 1+8j, 6+4j, 3+7j, 4+9j]])
     >>> new_rec = magniute_rescale(rec)
@@ -571,7 +571,7 @@ def cut_out(  # noqa: C901  # TODO: Simplify function
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param max_section_size: Maximum allowable size of the section to be quantized. Default is 3.
     :type max_section_size: int, optional
     :param fill_type: Fill option used to replace cutout section of data (zeros, ones, low-snr, avg-snr-1, avg-snr-2).
@@ -596,7 +596,7 @@ def cut_out(  # noqa: C901  # TODO: Simplify function
     :return: A numpy array containing the I and Q data samples with random sections cut out and replaced according to
         `fill_type` if `signal` is an array. If `signal` is a `Recording`, returns a `Recording` object
         with its `data` attribute containing the cut out and replaced array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+5j, 1+8j, 6+4j, 3+7j, 4+9j]])
     >>> new_rec = cut_out(rec)
@@ -666,7 +666,7 @@ def patch_shuffle(signal: ArrayLike | Recording, max_patch_size: Optional[int] =
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param max_patch_size: Maximum allowable patch size of the data that can be shuffled. Default is 3.
     :type max_patch_size: int, optional
 
@@ -676,7 +676,7 @@ def patch_shuffle(signal: ArrayLike | Recording, max_patch_size: Optional[int] =
     :return: A numpy array containing the I and Q data samples with randomly shuffled regions if `signal` is
         an array. If `signal` is a `Recording`, returns a `Recording` object with its `data` attribute containing
         the shuffled array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+5j, 1+8j, 6+4j, 3+7j, 4+9j]])
     >>> new_rec = patch_shuffle(rec)

src/ria_toolkit_oss/transforms/iq_impairments.py

@@ -16,7 +16,7 @@ import numpy as np
 from numpy.typing import ArrayLike
 from scipy.signal import resample_poly
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.transforms import iq_augmentations
 
 
@@ -31,7 +31,7 @@ def add_awgn_to_signal(signal: ArrayLike | Recording, snr: Optional[float] = 1)
 
     :param signal: Input IQ data as a complex ``C x N`` array or `Recording`, where ``C`` is the number of channels
         and ``N`` is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param snr: The signal-to-noise ratio in dB. Default is 1.
     :type snr: float, optional
 
@@ -39,7 +39,7 @@ def add_awgn_to_signal(signal: ArrayLike | Recording, snr: Optional[float] = 1)
 
     :return: A numpy array which is the sum of the noise (which matches the SNR) and the original signal. If `signal`
         is a `Recording`, returns a `Recording object` with its `data` attribute containing the noisy signal array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 2+2j]])
     >>> new_rec = add_awgn_to_signal(rec)
@@ -71,7 +71,7 @@ def time_shift(signal: ArrayLike | Recording, shift: Optional[int] = 1) -> np.nd
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param shift: The number of indices to shift by. Default is 1.
     :type shift: int, optional
 
@@ -80,7 +80,7 @@ def time_shift(signal: ArrayLike | Recording, shift: Optional[int] = 1) -> np.nd
 
     :return: A numpy array which represents the time-shifted signal. If `signal` is a `Recording`,
         returns a `Recording object` with its `data` attribute containing the time-shifted array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 2+2j, 3+3j, 4+4j, 5+5j]])
     >>> new_rec = time_shift(rec, -2)
@@ -134,7 +134,7 @@ def frequency_shift(signal: ArrayLike | Recording, shift: Optional[float] = 0.5)
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param shift: The frequency shift relative to the sample rate. Must be in the range ``[-0.5, 0.5]``.
         Default is 0.5.
     :type shift: float, optional
@@ -144,7 +144,7 @@ def frequency_shift(signal: ArrayLike | Recording, shift: Optional[float] = 0.5)
 
     :return: A numpy array which represents the frequency-shifted signal. If `signal` is a `Recording`,
         returns a `Recording object` with its `data` attribute containing the frequency-shifted array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 2+2j, 3+3j, 4+4j]])
     >>> new_rec = frequency_shift(rec, -0.4)
@@ -189,7 +189,7 @@ def phase_shift(signal: ArrayLike | Recording, phase: Optional[float] = np.pi) -
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param phase: The phase angle by which to rotate the IQ samples, in radians. Must be in the range ``[-π, π]``.
         Default is π.
     :type phase: float, optional
@@ -199,7 +199,7 @@ def phase_shift(signal: ArrayLike | Recording, phase: Optional[float] = np.pi) -
 
     :return: A numpy array which represents the phase-shifted signal. If `signal` is a `Recording`,
         returns a `Recording object` with its `data` attribute containing the phase-shifted array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 2+2j, 3+3j, 4+4j]])
     >>> new_rec = phase_shift(rec, np.pi/2)
@@ -246,7 +246,7 @@ def iq_imbalance(
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param amplitude_imbalance: The IQ amplitude imbalance to apply, in dB. Default is 1.5.
     :type amplitude_imbalance: float, optional
     :param phase_imbalance: The IQ phase imbalance to apply, in radians. Default is π.
@@ -260,7 +260,7 @@ def iq_imbalance(
 
     :return: A numpy array which is the original signal with an applied IQ imbalance. If `signal` is a `Recording`,
         returns a `Recording object` with its `data` attribute containing the IQ imbalanced signal array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[2+18j, -34+2j, 3+9j]])
     >>> new_rec = iq_imbalance(rec, 1, np.pi, 2)
@@ -315,7 +315,7 @@ def resample(signal: ArrayLike | Recording, up: Optional[int] = 4, down: Optiona
 
     :param signal: Input IQ data as a complex CxN array or `Recording`, where C is the number of channels and N
         is the length of the IQ examples.
-    :type signal: array_like or ria_toolkit_oss.datatypes.Recording
+    :type signal: array_like or ria_toolkit_oss.data.Recording
     :param up: The upsampling factor. Default is 4.
     :type up: int, optional
     :param down: The downsampling factor. Default is 2.
@@ -325,7 +325,7 @@ def resample(signal: ArrayLike | Recording, up: Optional[int] = 4, down: Optiona
 
     :return: A numpy array which represents the resampled signal If `signal` is a `Recording`,
         returns a `Recording object` with its `data` attribute containing the resampled array.
-    :rtype: np.ndarray or ria_toolkit_oss.datatypes.Recording
+    :rtype: np.ndarray or ria_toolkit_oss.data.Recording
 
     >>> rec = Recording(data=[[1+1j, 2+2j]])
     >>> new_rec = resample(rec, 2, 1)

src/ria_toolkit_oss/view/recording.py

@@ -4,14 +4,14 @@ import scipy.signal as signal
 from plotly.graph_objs import Figure
 from scipy.fft import fft, fftshift
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 
 
 def spectrogram(rec: Recording, thumbnail: bool = False) -> Figure:
     """Create a spectrogram for the recording.
 
     :param rec: Signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
     :param thumbnail: Whether to return a small thumbnail version or full plot.
     :type thumbnail: bool
 
@@ -95,7 +95,7 @@ def iq_time_series(rec: Recording) -> Figure:
     """Create a time series plot of the real and imaginary parts of signal.
 
     :param rec: Signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Time series plot as a Plotly figure.
     """
@@ -125,7 +125,7 @@ def frequency_spectrum(rec: Recording) -> Figure:
     """Create a frequency spectrum plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Frequency spectrum as a Plotly figure.
     """
@@ -160,7 +160,7 @@ def constellation(rec: Recording) -> Figure:
     """Create a constellation plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Constellation as a Plotly figure.
     """

src/ria_toolkit_oss/view/tools.py

@@ -32,16 +32,15 @@ def extract_metadata_fields(metadata):
 
 
 def set_path(output_path):
-    split_path = output_path.split("/")
+    path = pathlib.Path(output_path)
 
-    if len(split_path) == 1:
+    # If only filename provided (no directory), use default 'images' folder
-        folder = "images"
+    if len(path.parts) == 1:
-        file = split_path[0]
+        folder = pathlib.Path("images")
-    elif len(split_path) > 2:
+        file = path.name
-        file = split_path[-1]
-        folder = "/".join(split_path[:-1])
     else:
-        folder, file = split_path
+        folder = path.parent
+        file = path.name
 
     split_file = file.split(".")
     if len(split_file) == 2:
@@ -53,5 +52,5 @@ def set_path(output_path):
         extension = "png"
         file = file + ".png"
 
-    pathlib.Path(folder).mkdir(parents=True, exist_ok=True)
+    folder.mkdir(parents=True, exist_ok=True)
-    return "/".join([folder, file]), extension
+    return str(folder / file), extension

src/ria_toolkit_oss/view/view_signal.py

@@ -3,16 +3,17 @@ import os
 import textwrap
 from typing import Optional
 
+import matplotlib
 import matplotlib.pyplot as plt
 import numpy as np
-from matplotlib import gridspec
+from matplotlib import gridspec, ticker
 from matplotlib.patches import Patch
-from PIL import Image
+from PIL import Image, UnidentifiedImageError
 from scipy.fft import fft, fftshift
 from scipy.signal import spectrogram
 from scipy.signal.windows import hann
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.view.tools import (
     COLORS,
     decimate,
@@ -185,7 +186,7 @@ def view_sig(
     logo: Optional[bool] = True,
     dark: Optional[bool] = True,
     spines: Optional[bool] = False,
-    title_fontsize: Optional[int] = 35,
+    title_fontsize: Optional[int] = 25,
     subtitle_fontsize: Optional[int] = 15,
 ) -> None:
     """
@@ -230,11 +231,26 @@ def view_sig(
     complex_signal = recording.data[0]
     sample_rate, center_frequency, _ = extract_metadata_fields(recording.metadata)
 
-    subplot_height = 2 * (plot_spectrogram + iq + frequency) + 3 * (constellation or metadata or logo)
+    subplot_height = 3 * (plot_spectrogram) + 2 * (iq + frequency) + 3 * (constellation or metadata or logo)
     subplot_width = max((constellation + metadata or 1), logo * 3)
 
     if dark:
         plt.style.use("dark_background")
+        matplotlib.rcParams.update(
+            {
+                "figure.facecolor": "#161616",
+                "axes.facecolor": "#161616",
+                "savefig.facecolor": "#161616",
+                "savefig.edgecolor": "#161616",
+                "font.size": 10,
+                "axes.titlesize": 15,
+                "axes.labelsize": 10,
+                "xtick.labelsize": 10,
+                "ytick.labelsize": 10,
+                "legend.frameon": False,
+                "legend.facecolor": "none",
+            }
+        )
         logo_path = os.path.dirname(__file__) + "/graphics/Qoherent-logo-white-transparent.png"
     else:
         plt.style.use("default")
@@ -252,8 +268,8 @@ def view_sig(
     plot_x_indx = 0
 
     if plot_spectrogram:
-        spec_ax = plt.subplot(gs[plot_y_indx : plot_y_indx + 2, :])
+        spec_ax = plt.subplot(gs[plot_y_indx : plot_y_indx + 3, :])
-        plot_y_indx = plot_y_indx + 2
+        plot_y_indx = plot_y_indx + 3
         fft_size = get_fft_size(plot_length=plot_length)
 
         _, t_spec, Sxx = spectrogram(
@@ -280,7 +296,10 @@ def view_sig(
         )
 
         set_spines(spec_ax, spines)
-        spec_ax.set_title("Spectrogram", loc="center", fontsize=subtitle_fontsize)
+        spec_ax.set_title("Spectrogram", loc="left", fontsize=subtitle_fontsize)
+        spec_ax.set_xlabel("Time (s)")
+        spec_ax.set_ylabel("Frequency (MHz)")
+        spec_ax.yaxis.set_major_formatter(ticker.FuncFormatter(lambda x, _: f"{x / 1e6:.1f}"))
 
     if iq:
         iq_ax = plt.subplot(gs[plot_y_indx : plot_y_indx + 2, :])
@@ -291,12 +310,13 @@ def view_sig(
 
         iq_ax.plot(t, plot_iq.real, color=COLORS["purple"], linewidth=0.6, alpha=0.8, label="I")
         iq_ax.plot(t, plot_iq.imag, color=COLORS["magenta"], linewidth=0.6, alpha=0.8, label="Q")
-        iq_ax.grid(False)
+        iq_ax.grid(True, alpha=0.2, linewidth=0.5)
 
         iq_ax.set_ylabel("Amplitude")
         iq_ax.set_xlim([min(t), max(t)])
         iq_ax.set_xlabel("Time (s)")
-        iq_ax.set_title("IQ Sample Plot", fontsize=subtitle_fontsize)
+        iq_ax.set_title("IQ Sample Plot", loc="left", fontsize=subtitle_fontsize)
+        iq_ax.legend(loc="upper right", fontsize=10)
         set_spines(iq_ax, spines)
 
     if frequency:
@@ -310,10 +330,14 @@ def view_sig(
         # Convert to dB
         spectrum_db = 20 * np.log10(spectrum + 1e-12)  # 20*log for magnitude
 
-        freqs = np.linspace(-sample_rate / 2, sample_rate / 2, len(complex_signal[:plot_length])) + center_frequency
+        freqs = (
+            np.linspace(-sample_rate / 2, sample_rate / 2, len(complex_signal[:plot_length])) + center_frequency
+        ) / 1e6
         freq_ax.plot(freqs, spectrum_db, color=COLORS["accent"], linewidth=0.8)
+        freq_ax.set_xlabel("Frequency (MHz)")
         freq_ax.set_ylabel("Magnitude (dB)")
-        freq_ax.set_title("Frequency Spectrum (Windowed FFT)", fontsize=subtitle_fontsize)
+        freq_ax.grid(True, alpha=0.2, linewidth=0.5)
+        freq_ax.set_title("Frequency Spectrum (Windowed FFT)", loc="left", fontsize=subtitle_fontsize)
         set_spines(freq_ax, spines)
 
     if constellation:
@@ -326,7 +350,7 @@ def view_sig(
         const_ax.set_ylim([-1 * dimension, dimension])
         const_ax.set_xlabel("In-phase (I)")
         const_ax.set_ylabel("Quadrature (Q)")
-        const_ax.set_title("Constellation", fontsize=subtitle_fontsize)
+        const_ax.set_title("Constellation", loc="left", fontsize=subtitle_fontsize)
         const_ax.set_aspect("equal")
 
         if not spines:
@@ -375,8 +399,8 @@ def view_sig(
             image = Image.open(logo_path)  # Open the PNG image using PIL
             logo_ax.imshow(image)
 
-        except FileNotFoundError:
+        except (FileNotFoundError, UnidentifiedImageError, OSError) as exc:
-            print(f"Warning, {logo_path} not found.")
+            print(f"Warning, could not load logo image: {logo_path}. Reason: {exc}")
 
     fig.subplots_adjust(
         left=0.1,  # Left margin

src/ria_toolkit_oss/view/view_signal_simple.py

@@ -12,7 +12,7 @@ import numpy as np
 from scipy.fft import fft, fftshift
 from scipy.signal.windows import hann
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.view.tools import (
     COLORS,
     decimate,
@@ -119,24 +119,19 @@ def setup_style(*, labels_mode: bool = False, compact_mode: bool = False) -> Non
         label_font = 14
     else:
         base_font = 10
-        title_font = 12
+        title_font = 15
         label_font = 10
 
     matplotlib.rcParams.update(
         {
-            "figure.facecolor": "#0f172a",
+            "figure.facecolor": "#161616",
-            "axes.facecolor": "#1e293b",
+            "axes.facecolor": "#161616",
-            "axes.edgecolor": COLORS["muted"],
+            "savefig.facecolor": "#161616",
-            "axes.labelcolor": COLORS["light"],
+            "savefig.edgecolor": "#161616",
-            "text.color": COLORS["light"],
-            "xtick.color": COLORS["muted"],
-            "ytick.color": COLORS["muted"],
-            "grid.color": COLORS["muted"],
-            "grid.alpha": 0.3,
             "font.size": base_font,
             "axes.titlesize": title_font,
             "axes.labelsize": label_font,
-            "figure.titlesize": title_font + 2,
+            "figure.titlesize": title_font + 4,
             "legend.frameon": False,
             "legend.facecolor": "none",
             "xtick.labelsize": base_font,
@@ -194,7 +189,7 @@ def view_simple_sig(
     constellation_mode: Optional[bool] = False,
     labels_mode: Optional[bool] = False,
     slice: Optional[tuple] = None,
-    title: Optional[str] = "Signal",
+    title: Optional[str] = "Signal Plot",
 ):
     """
     Create a simple plot of various signal visualizations as a png or svg image.
@@ -237,7 +232,7 @@ def view_simple_sig(
     spec_signal = signal
 
     if compact_mode:
-        fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(12, 6), gridspec_kw={"height_ratios": [1, 5]})
+        fig, (ax2, ax1) = plt.subplots(2, 1, figsize=(12, 6), gridspec_kw={"height_ratios": [5, 1]})
         show_title = False
         show_labels = False
         ax_constellation = ax_psd = None
@@ -253,25 +248,24 @@ def view_simple_sig(
         ax_psd = None
     else:
         if constellation_mode:
-            fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, figsize=(16, 12))
+            fig, ((ax2, ax1), (ax3, ax4)) = plt.subplots(2, 2, figsize=(16, 12))
             ax_constellation, ax_psd = ax3, ax4
         else:
-            fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(14, 10))
+            fig, (ax2, ax1) = plt.subplots(2, 1, figsize=(14, 10))
             ax_constellation = ax_psd = None
         show_title = True
         show_labels = labels_mode
 
     if show_title:
-        fig.suptitle(title, fontsize=16, color=COLORS["light"], y=0.96)
+        fig.suptitle(title, fontsize=25)
-    fig.patch.set_facecolor("#0f172a")
+    fig.patch.set_facecolor(matplotlib.rcParams["figure.facecolor"])
 
     total_duration_s = len(signal) / sample_rate_hz if sample_rate_hz else 0.0
     t_s = np.linspace(0, total_duration_s, len(display_signal)) if len(display_signal) else np.array([])
 
-    ax1.plot(t_s, display_signal.real, color=COLORS["purple"], linewidth=0.8, alpha=0.8, label="I")
+    ax1.plot(t_s, display_signal.real, color=COLORS["purple"], linewidth=0.6, alpha=0.8, label="I")
-    ax1.plot(t_s, display_signal.imag, color=COLORS["magenta"], linewidth=0.8, alpha=0.8, label="Q")
+    ax1.plot(t_s, display_signal.imag, color=COLORS["magenta"], linewidth=0.6, alpha=0.8, label="Q")
-    ax1.set_xlim(0, total_duration_s)
+    ax1.grid(True, alpha=0.2, linewidth=0.5)
-    ax1.grid(True, alpha=0.3)
 
     nfft, overlap = _get_nfft_size(signal=signal, fast_mode=fast_mode)
 
@@ -285,7 +279,7 @@ def view_simple_sig(
     )
 
     ax2.set_ylim(center_freq_hz - sample_rate_hz / 2, center_freq_hz + sample_rate_hz / 2)
-    ax2.set_xlim(0, total_duration_s)
+    ax1.set_xlim(ax2.get_xlim())
 
     if show_labels:
         if horizontal_mode:
@@ -294,20 +288,25 @@ def view_simple_sig(
             ax2.set_xlabel("Time (s)")
 
         ax1.set_ylabel("Amplitude")
-        ax1.set_title(f"Time Series - {sdr} SDR", loc="left", pad=10)
+        ax1.set_title(f"IQ Sample Plot - {sdr} SDR", loc="left", pad=10, fontsize=15)
-        ax1.legend(loc="upper right")
+        ax1.legend(loc="upper right", fontsize=10)
 
-        ax2.set_ylabel("Frequency (Hz)")
+        ax2.set_ylabel("Frequency (MHz)")
         ax2.set_title(
-            f"Spectrogram - {center_freq_hz / 1e6:.1f} MHz ± {sample_rate_hz / 2e6:.1f} MHz", loc="left", pad=10
+            f"Spectrogram - {center_freq_hz / 1e6:.1f} MHz ± {sample_rate_hz / 2e6:.1f} MHz",
+            loc="left",
+            pad=10,
+            fontsize=15,
         )
-        yticks = ax2.get_yticks()
+        ax2.yaxis.set_major_formatter(matplotlib.ticker.FuncFormatter(lambda x, _: f"{x / 1e6:.1f}"))
-        ax2.set_yticklabels([f"{y / 1e6:.1f}" for y in yticks])
     elif not compact_mode:
-        ax1.set_title("Time Series", loc="left", pad=10)
+        ax1.set_title("IQ Sample Plot", loc="left", pad=10, fontsize=15)
-        ax1.legend(loc="upper right", fontsize=8)
+        ax1.legend(loc="upper right", fontsize=10)
 
-        ax2.set_title("Spectrogram", loc="left", pad=10)
+        ax2.set_xlabel("Time (s)")
+        ax2.set_ylabel("Frequency (MHz)")
+        ax2.set_title("Spectrogram", loc="left", pad=10, fontsize=15)
+        ax2.yaxis.set_major_formatter(matplotlib.ticker.FuncFormatter(lambda x, _: f"{x / 1e6:.1f}"))
 
     _add_annotations(
         annotations=annotations,
@@ -339,8 +338,8 @@ def view_simple_sig(
         )
         ax_constellation.set_xlabel("In-phase (I)")
         ax_constellation.set_ylabel("Quadrature (Q)")
-        ax_constellation.set_title("Constellation")
+        ax_constellation.set_title("Constellation", loc="left", fontsize=15)
-        ax_constellation.grid(True, alpha=0.3)
+        ax_constellation.grid(True, alpha=0.2, linewidth=0.5)
         ax_constellation.set_aspect("equal")
 
     if ax_psd is not None:
@@ -351,11 +350,11 @@ def view_simple_sig(
         freqs = freqs + center_freq_hz
         spectrum_db = 10 * np.log10(spectrum + 1e-12)
 
-        ax_psd.plot(freqs / 1e6, spectrum_db, color=COLORS["accent"], linewidth=1.0)
+        ax_psd.plot(freqs / 1e6, spectrum_db, color=COLORS["accent"], linewidth=0.8)
         ax_psd.set_xlabel("Frequency (MHz)")
         ax_psd.set_ylabel("Power (dB)")
-        ax_psd.set_title("Power Spectral Density")
+        ax_psd.set_title("Power Spectral Density", loc="left", fontsize=15)
-        ax_psd.grid(True, alpha=0.3)
+        ax_psd.grid(True, alpha=0.2, linewidth=0.5)
 
     if compact_mode:
         ax1.set_xticks([])
@@ -367,13 +366,20 @@ def view_simple_sig(
     else:
         plt.tight_layout()
         if show_title:
-            plt.subplots_adjust(top=0.92)
+            plt.subplots_adjust(top=0.9)
 
     if saveplot:
         output_path, extension = set_path(output_path=output_path)
         dpi_value = _set_dpi(fast_mode=fast_mode, labels_mode=labels_mode, extension=extension)
 
-        plt.savefig(output_path, dpi=dpi_value, bbox_inches="tight", facecolor="#0f172a", edgecolor="none")
+        plt.savefig(
+            output_path,
+            dpi=dpi_value,
+            bbox_inches="tight",
+            pad_inches=0.3,
+            facecolor=matplotlib.rcParams["savefig.facecolor"],
+            edgecolor=matplotlib.rcParams["savefig.edgecolor"],
+        )
         print(f"Saved signal plot to {output_path}")
         return output_path
 

src/ria_toolkit_oss/viz/recording.py

@@ -4,14 +4,14 @@ import scipy.signal as signal
 from plotly.graph_objs import Figure
 from scipy.fft import fft, fftshift
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 
 
 def spectrogram(rec: Recording, thumbnail: bool = False) -> Figure:
     """Create a spectrogram for the recording.
 
     :param rec: Signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
     :param thumbnail: Whether to return a small thumbnail version or full plot.
     :type thumbnail: bool
 
@@ -107,7 +107,7 @@ def iq_time_series(rec: Recording) -> Figure:
     """Create a time series plot of the real and imaginary parts of signal.
 
     :param rec: Signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Time series plot, as a Plotly Figure.
     """
@@ -145,7 +145,7 @@ def frequency_spectrum(rec: Recording) -> Figure:
     """Create a frequency spectrum plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Frequency spectrum, as a Plotly figure.
     """
@@ -187,7 +187,7 @@ def constellation(rec: Recording) -> Figure:
     """Create a constellation plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: Constellation, as a Plotly Figure.
     """
@@ -222,7 +222,7 @@ def power_spectral_density(rec: Recording) -> Figure:
     """Create a Power Spectral Density (PSD) plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: PSD plot, as a Plotly Figure.
     """
@@ -268,7 +268,7 @@ def fft_plot(rec: Recording) -> Figure:
     """Create an FFT magnitude plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: FFT plot, as a Plotly Figure.
     """
@@ -312,7 +312,7 @@ def spectrogram_3d(rec: Recording) -> Figure:
     """Create a 3D spectrogram plot from the recording.
 
     :param rec: Input signal to plot.
-    :type rec: ria_toolkit_oss.datatypes.Recording
+    :type rec: ria_toolkit_oss.data.Recording
 
     :return: 3D Spectrogram, as a Plotly Figure.
     """

src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py

@@ -11,8 +11,8 @@ from ria_toolkit_oss.annotations import (
     split_recording_annotations,
     threshold_qualifier,
 )
-from ria_toolkit_oss.datatypes import Annotation
+from ria_toolkit_oss.data import Annotation
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.io import load_recording, to_blue, to_npy, to_sigmf, to_wav
 from ria_toolkit_oss_cli.ria_toolkit_oss.common import (
     format_frequency,
@@ -51,7 +51,7 @@ def detect_input_format(filepath):
         raise click.ClickException(f"Unknown format for '{filepath}'. Supported: .sigmf, .npy, .wav, .blue")
 
 
-def determine_output_path(input_path, output_path, fmt, quiet, overwrite):
+def determine_output_path(input_path, output_path, fmt, overwrite):
     input_path = Path(input_path)
     input_is_annotated = input_path.stem.endswith("_annotated")
 
@@ -63,24 +63,20 @@ def determine_output_path(input_path, output_path, fmt, quiet, overwrite):
     else:
         target = input_path.with_name(f"{input_path.stem}_annotated{input_path.suffix}")
 
-    if fmt == "sigmf":
+    final_path = normalize_sigmf_path(target) if fmt == "sigmf" else target
-        final_path = normalize_sigmf_path(target)
-        if not quiet:
-            click.echo(f"Saving SigMF metadata to: {final_path}")
-    else:
-        final_path = target
-        if not quiet:
-            click.echo(f"Saving to: {final_path}")
 
-    # Always allow writing to _annotated files; guard against overwriting originals
+    if final_path.exists() and not overwrite:
-    target_is_annotated = final_path.stem.endswith("_annotated")
+        raise click.ClickException(f"{final_path} already exists. Use --overwrite to replace it.")
-    if final_path.exists() and not target_is_annotated and final_path != input_path:
-        click.echo(f"Error: {final_path} is not an annotated file and cannot be overwritten.", err=True)
-        return None
 
     return final_path
 
 
+def check_output_available(input_path, output_path, overwrite):
+    """Raise ClickException before any work begins if the output file already exists."""
+    fmt = detect_input_format(Path(input_path))
+    determine_output_path(input_path=input_path, output_path=output_path, fmt=fmt, overwrite=overwrite)
+
+
 def save_recording_auto(recording, output_path, input_path, quiet=False, overwrite=False):
     """Save recording, auto-detecting format from extension.
 
@@ -90,11 +86,16 @@ def save_recording_auto(recording, output_path, input_path, quiet=False, overwri
     input_path = Path(input_path)
     fmt = detect_input_format(input_path)
 
-    # Determine output path
     output_path = determine_output_path(
-        input_path=input_path, output_path=output_path, fmt=fmt, quiet=quiet, overwrite=overwrite
+        input_path=input_path, output_path=output_path, fmt=fmt, overwrite=overwrite
     )
 
+    if not quiet:
+        if fmt == "sigmf":
+            click.echo(f"Saving SigMF metadata to: {output_path}")
+        else:
+            click.echo(f"Saving to: {output_path}")
+
     if fmt == "sigmf":
         # Normalize path for SigMF
         base_path = output_path
@@ -312,6 +313,8 @@ def add(input, start, count, label, freq_lower, freq_upper, comment, annotation_
     except Exception as e:
         raise click.ClickException(f"Failed to load recording: {e}")
 
+    check_output_available(input, output, overwrite)
+
     # Validate sample range
     n_samples = len(recording.data[0])
     if start < 0:
@@ -363,12 +366,9 @@ def add(input, start, count, label, freq_lower, freq_upper, comment, annotation_
         if comment:
             click.echo(f"  Comment: {comment}")
 
-    try:
+    save_recording_auto(recording, output, input, quiet, overwrite)
-        save_recording_auto(recording, output, input, quiet, overwrite)
+    if not quiet:
-        if not quiet:
+        click.echo("  ✓ Saved")
-            click.echo("  ✓ Saved")
-    except Exception as e:
-        raise click.ClickException(f"Failed to save: {e}")
 
 
 # ============================================================================
@@ -466,8 +466,6 @@ def clear(input, output, overwrite, force, quiet):
     if not quiet:
         click.echo(f"\nCleared {count_before} annotation(s)")
 
-    recording._annotations = []
-
     try:
         save_recording_auto(recording, output_path=input, input_path=input, quiet=quiet, overwrite=True)
         if not quiet:
@@ -503,6 +501,10 @@ def clear(input, output, overwrite, force, quiet):
     default="standalone",
     help="Annotation type",
 )
+@click.option(
+    "--sample-rate", type=float, default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)"
+)
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
 @click.option("--quiet", is_flag=True, help="Quiet mode")
@@ -517,6 +519,7 @@ def energy(
     nfft,
     obw_power,
     annotation_type,
+    sample_rate,
     output,
     overwrite,
     quiet,
@@ -539,8 +542,11 @@ def energy(
       ria annotate energy signal.npy --threshold 1.5 --min-distance 10000
       ria annotate energy signal.sigmf-data --freq-method obw
       ria annotate energy signal.sigmf-data --freq-method full-detected
+      ria annotate energy signal.npy --sample-rate 1e6
 
     """
+    check_output_available(input, output, overwrite)
+
     try:
         recording = load_recording(input)
         if not quiet:
@@ -548,6 +554,15 @@ def energy(
     except Exception as e:
         raise click.ClickException(f"Failed to load recording: {e}")
 
+    if sample_rate is not None:
+        recording.sample_rate = sample_rate
+
+    if recording.sample_rate is None:
+        raise click.ClickException(
+            "Recording metadata does not contain a sample rate. "
+            "Provide it with --sample-rate (e.g. --sample-rate 1e6)."
+        )
+
     if not quiet:
         click.echo("\nDetecting signals using energy-based method...")
         click.echo("  Time detection:")
@@ -575,13 +590,13 @@ def energy(
 
         if not quiet:
             click.echo(f"  ✓ Added {added} annotation(s)")
-
-        save_recording_auto(recording, output, input, quiet, overwrite)
-        if not quiet:
-            click.echo("  ✓ Saved")
     except Exception as e:
         raise click.ClickException(f"Energy detection failed: {e}")
 
+    save_recording_auto(recording, output, input, quiet, overwrite)
+    if not quiet:
+        click.echo("  ✓ Saved")
+
 
 # ============================================================================
 # CUSUM detection subcommand
@@ -601,10 +616,14 @@ def energy(
     default="standalone",
     help="Annotation type",
 )
+@click.option(
+    "--sample-rate", type=float, default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)"
+)
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
 @click.option("--quiet", is_flag=True, help="Quiet mode")
-def cusum(input, label, min_duration, window_size, tolerance, annotation_type, output, overwrite, quiet):
+def cusum(input, label, min_duration, window_size, tolerance, annotation_type, sample_rate, output, overwrite, quiet):
     """Auto-detect segments using CUSUM method.
 
     Detects signal state changes (on/off, amplitude transitions). Best for
@@ -616,7 +635,10 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, o
     Examples:
       ria annotate cusum signal.sigmf-data --min-duration 5.0
       ria annotate cusum data.npy --min-duration 10.0 --label state
+      ria annotate cusum data.npy --sample-rate 1e6
     """
+    check_output_available(input, output, overwrite)
+
     try:
         recording = load_recording(input)
         if not quiet:
@@ -624,6 +646,15 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, o
     except Exception as e:
         raise click.ClickException(f"Failed to load recording: {e}")
 
+    if sample_rate is not None:
+        recording.sample_rate = sample_rate
+
+    if recording.sample_rate is None:
+        raise click.ClickException(
+            "Recording metadata does not contain a sample rate. "
+            "Provide it with --sample-rate (e.g. --sample-rate 1e6)."
+        )
+
     if not quiet:
         click.echo("\nDetecting segments using CUSUM...")
         click.echo(f"  Min duration: {min_duration} ms")
@@ -644,13 +675,13 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, o
 
         if not quiet:
             click.echo(f"  ✓ Added {added} annotation(s)")
-
-        save_recording_auto(recording, output, input, quiet, overwrite)
-        if not quiet:
-            click.echo("  ✓ Saved")
     except Exception as e:
         raise click.ClickException(f"CUSUM detection failed: {e}")
 
+    save_recording_auto(recording, output, input, quiet, overwrite)
+    if not quiet:
+        click.echo("  ✓ Saved")
+
 
 # ============================================================================
 # Threshold detection subcommand
@@ -675,10 +706,14 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, o
     help="Annotation type",
 )
 @click.option("--channel", type=int, default=0, help="Channel index to annotate (default: 0)")
+@click.option(
+    "--sample-rate", type=float, default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)"
+)
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
 @click.option("--quiet", is_flag=True, help="Quiet mode")
-def threshold(input, threshold, label, window_size, annotation_type, channel, output, overwrite, quiet):
+def threshold(input, threshold, label, window_size, annotation_type, channel, sample_rate, output, overwrite, quiet):
     """Auto-detect signals using threshold method.
 
     Detects samples above a percentage of maximum magnitude. Best for simple
@@ -688,10 +723,13 @@ def threshold(input, threshold, label, window_size, annotation_type, channel, ou
     Examples:
       ria annotate threshold signal.sigmf-data --threshold 0.7 --label wifi
       ria annotate threshold data.npy --threshold 0.5 --window-size 2048
+      ria annotate threshold data.npy --threshold 0.4 --sample-rate 1e6
     """
     if not (0.0 <= threshold <= 1.0):
         raise click.ClickException(f"--threshold must be between 0.0 and 1.0, got {threshold}")
 
+    check_output_available(input, output, overwrite)
+
     try:
         recording = load_recording(input)
         if not quiet:
@@ -699,11 +737,21 @@ def threshold(input, threshold, label, window_size, annotation_type, channel, ou
     except Exception as e:
         raise click.ClickException(f"Failed to load recording: {e}")
 
+    if sample_rate is not None:
+        recording.sample_rate = sample_rate
+
+    if recording.sample_rate is None:
+        raise click.ClickException(
+            "Recording metadata does not contain a sample rate. "
+            "Provide it with --sample-rate (e.g. --sample-rate 1e6)."
+        )
+
     if not quiet:
         click.echo("\nDetecting signals using threshold qualifier...")
         click.echo(f"  Threshold: {threshold * 100:.1f}% of max magnitude")
         click.echo(f"  Window size: {'auto (1ms)' if window_size is None else f'{window_size} samples'}")
         click.echo(f"  Channel: {channel}")
+        click.echo(f"  Sample rate: {recording.sample_rate:.0f} Hz")
 
     try:
         initial_count = len(recording.annotations)
@@ -719,13 +767,13 @@ def threshold(input, threshold, label, window_size, annotation_type, channel, ou
 
         if not quiet:
             click.echo(f"  ✓ Added {added} annotation(s)")
-
-        save_recording_auto(recording, output, input, quiet, overwrite)
-        if not quiet:
-            click.echo("  ✓ Saved")
     except Exception as e:
         raise click.ClickException(f"Threshold detection failed: {e}")
 
+    save_recording_auto(recording, output, input, quiet, overwrite)
+    if not quiet:
+        click.echo("  ✓ Saved")
+
 
 # ============================================================================
 # Separate subcommand (Phase 2: Parallel signal separation)
@@ -738,11 +786,30 @@ def threshold(input, threshold, label, window_size, annotation_type, channel, ou
 @click.option("--nfft", type=int, default=65536, help="FFT size for spectral analysis")
 @click.option("--noise-threshold-db", type=float, help="Noise floor threshold in dB (auto-estimated if not specified)")
 @click.option("--min-component-bw", type=float, default=50e3, help="Min component bandwidth in Hz")
+@click.option(
+    "--sample-rate", type=float, default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)"
+)
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
 @click.option("--quiet", is_flag=True, help="Quiet mode")
 @click.option("--verbose", is_flag=True, help="Verbose output (show detected components)")
-def separate(input, indices, nfft, noise_threshold_db, min_component_bw, output, overwrite, quiet, verbose):
+def _log_separate_start(quiet, recording, indices_list, nfft, noise_threshold_db, min_component_bw):
+    if not quiet:
+        click.echo("\nSplitting annotations by frequency components...")
+        click.echo(f"  Input annotations: {len(recording.annotations)}")
+        if indices_list:
+            click.echo(f"  Splitting indices: {indices_list}")
+        click.echo(f"  FFT size: {nfft}")
+        if noise_threshold_db is not None:
+            click.echo(f"  Noise threshold: {noise_threshold_db} dB")
+        else:
+            click.echo("  Noise threshold: auto-estimated")
+        click.echo(f"  Min component BW: {format_frequency(min_component_bw)}")
+
+
+def separate(
+        input, indices, nfft, noise_threshold_db, min_component_bw, sample_rate, output, overwrite, quiet, verbose):
     """
     Auto-detect parallel frequency-offset signals and split into sub-bands.
 
@@ -768,6 +835,8 @@ def separate(input, indices, nfft, noise_threshold_db, min_component_bw, output,
       ria annotate separate signal.npy --min-component-bw 100000
 
     """
+    check_output_available(input, output, overwrite)
+
     try:
         recording = load_recording(input)
         if not quiet:
@@ -775,6 +844,15 @@ def separate(input, indices, nfft, noise_threshold_db, min_component_bw, output,
     except Exception as e:
         raise click.ClickException(f"Failed to load recording: {e}")
 
+    if sample_rate is not None:
+        recording.sample_rate = sample_rate
+
+    if recording.sample_rate is None:
+        raise click.ClickException(
+            "Recording metadata does not contain a sample rate. "
+            "Provide it with --sample-rate (e.g. --sample-rate 1e6)."
+        )
+
     # Parse indices if specified
     indices_list = get_indices_list(indices=indices, recording=recording)
 
@@ -783,17 +861,7 @@ def separate(input, indices, nfft, noise_threshold_db, min_component_bw, output,
             click.echo("No annotations to split")
         return
 
-    if not quiet:
+    _log_separate_start(quiet, recording, indices_list, nfft, noise_threshold_db, min_component_bw)
-        click.echo("\nSplitting annotations by frequency components...")
-        click.echo(f"  Input annotations: {len(recording.annotations)}")
-        if indices_list:
-            click.echo(f"  Splitting indices: {indices_list}")
-        click.echo(f"  FFT size: {nfft}")
-        if noise_threshold_db is not None:
-            click.echo(f"  Noise threshold: {noise_threshold_db} dB")
-        else:
-            click.echo("  Noise threshold: auto-estimated")
-        click.echo(f"  Min component BW: {format_frequency(min_component_bw)}")
 
     try:
         initial_count = len(recording.annotations)
@@ -821,8 +889,9 @@ def separate(input, indices, nfft, noise_threshold_db, min_component_bw, output,
                         f"{format_sample_count(ann.sample_start + ann.sample_count)}: {freq_range}"
                     )
 
-        save_recording_auto(recording, output, input, quiet, overwrite)
-        if not quiet:
-            click.echo("  ✓ Saved")
     except Exception as e:
         raise click.ClickException(f"Spectral separation failed: {e}")
+
+    save_recording_auto(recording, output, input, quiet, overwrite)
+    if not quiet:
+        click.echo("  ✓ Saved")

src/ria_toolkit_oss_cli/ria_toolkit_oss/combine.py

@@ -7,7 +7,7 @@ from pathlib import Path
 import click
 import numpy as np
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.io import from_npy_legacy, load_recording
 from ria_toolkit_oss_cli.ria_toolkit_oss.common import (
     echo_progress,

src/ria_toolkit_oss_cli/ria_toolkit_oss/common.py

@@ -7,7 +7,7 @@ from typing import Any, Dict, List, Optional
 import click
 import yaml
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.io.recording import to_blue, to_npy, to_sigmf, to_wav
 
 

src/ria_toolkit_oss_cli/ria_toolkit_oss/generate.py

@@ -8,7 +8,7 @@ import numpy as np
 import yaml
 
 import ria_toolkit_oss.signal.basic_signal_generator as basic_gen
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.signal.block_generator.basic import FrequencyShift
 from ria_toolkit_oss.signal.block_generator.continuous_modulation.fsk_modulator import (
     FSKModulator,

src/ria_toolkit_oss_cli/ria_toolkit_oss/serve.py

@@ -23,9 +23,9 @@ def serve(host: str, port: int, api_key: str, log_level: str):
 
     \b
     Endpoints:
-        POST /orchestrator/deploy
+        POST /conductor/deploy
-        GET  /orchestrator/status/{campaign_id}
+        GET  /conductor/status/{campaign_id}
-        POST /orchestrator/cancel/{campaign_id}
+        POST /conductor/cancel/{campaign_id}
         POST /inference/load
         POST /inference/start
         POST /inference/stop

src/ria_toolkit_oss_cli/ria_toolkit_oss/transform.py

@@ -8,7 +8,7 @@ from pathlib import Path
 
 import click
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.io.recording import load_recording
 from ria_toolkit_oss.transforms import iq_augmentations, iq_impairments
 from ria_toolkit_oss_cli.ria_toolkit_oss.common import (

src/ria_toolkit_oss_cli/ria_toolkit_oss/transmit.py

@@ -6,7 +6,7 @@ import time
 
 import click
 
-from ria_toolkit_oss.datatypes import Recording
+from ria_toolkit_oss.data import Recording
 from ria_toolkit_oss.io import from_npy_legacy, load_recording
 
 from .common import (

tests/datatypes/test_annotation.py

@@ -1,4 +1,4 @@
-from ria_toolkit_oss.datatypes import Annotation
+from ria_toolkit_oss.data import Annotation
 
 
 def test_annotation_creation():

tests/datatypes/test_recording.py

@@ -3,8 +3,8 @@ from typing import Iterable
 import numpy as np
 import pytest
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
-from ria_toolkit_oss.datatypes.recording import generate_recording_id
+from ria_toolkit_oss.data.recording import generate_recording_id
 
 COMPLEX_DATA_1 = [[0.5 + 0.5j, 0.1 + 0.1j, 0.3 + 0.3j, 0.4 + 0.4j, 0.5 + 0.5j]]
 

tests/io/test_recording_io.py

@@ -1,6 +1,6 @@
 import numpy as np
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 from ria_toolkit_oss.io.recording import (
     from_npy,
     from_sigmf,

tests/orchestration/test_executor.py

@@ -0,0 +1,314 @@
+"""Tests for orchestration executor — StepResult, CampaignResult, _run_script, _extract_tx_params."""
+
+from __future__ import annotations
+
+import json
+import stat
+from types import SimpleNamespace
+
+import pytest
+
+from ria_toolkit_oss.orchestration.executor import (
+    CampaignResult,
+    StepResult,
+    _extract_tx_params,
+    _run_script,
+)
+from ria_toolkit_oss.orchestration.qa import QAResult
+
+
+def _ok_qa() -> QAResult:
+    return QAResult(passed=True, flagged=False, snr_db=20.0, duration_s=1.0)
+
+
+def _flagged_qa() -> QAResult:
+    return QAResult(passed=True, flagged=True, snr_db=5.0, duration_s=1.0, issues=["low SNR"])
+
+
+def _failed_qa() -> QAResult:
+    return QAResult(passed=False, flagged=True, snr_db=0.0, duration_s=0.0, issues=["no signal"])
+
+
+# ---------------------------------------------------------------------------
+# StepResult
+# ---------------------------------------------------------------------------
+
+
+class TestStepResult:
+    def test_ok_true_when_no_error_and_qa_passed(self):
+        r = StepResult(
+            transmitter_id="tx1",
+            step_label="step1",
+            output_path="/out/rec.sigmf-data",
+            qa=_ok_qa(),
+            capture_timestamp=0.0,
+        )
+        assert r.ok is True
+
+    def test_ok_false_when_error_set(self):
+        r = StepResult(
+            transmitter_id="tx1",
+            step_label="step1",
+            output_path=None,
+            qa=_ok_qa(),
+            capture_timestamp=0.0,
+            error="SDR failed",
+        )
+        assert r.ok is False
+
+    def test_ok_false_when_qa_not_passed(self):
+        r = StepResult(
+            transmitter_id="tx1",
+            step_label="step1",
+            output_path="/out",
+            qa=_failed_qa(),
+            capture_timestamp=0.0,
+        )
+        assert r.ok is False
+
+    def test_to_dict_contains_required_keys(self):
+        r = StepResult(
+            transmitter_id="tx1",
+            step_label="step1",
+            output_path="/out/rec.sigmf-data",
+            qa=_ok_qa(),
+            capture_timestamp=1234.5,
+        )
+        d = r.to_dict()
+        assert d["transmitter_id"] == "tx1"
+        assert d["step_label"] == "step1"
+        assert d["output_path"] == "/out/rec.sigmf-data"
+        assert d["capture_timestamp"] == pytest.approx(1234.5)
+        assert d["error"] is None
+        assert d["qa"]["passed"] is True
+
+    def test_to_dict_includes_error_when_set(self):
+        r = StepResult(
+            transmitter_id="tx1",
+            step_label="step1",
+            output_path=None,
+            qa=_failed_qa(),
+            capture_timestamp=0.0,
+            error="disk full",
+        )
+        assert r.to_dict()["error"] == "disk full"
+
+
+# ---------------------------------------------------------------------------
+# CampaignResult
+# ---------------------------------------------------------------------------
+
+
+class TestCampaignResult:
+    def _make(self, steps: list) -> CampaignResult:
+        r = CampaignResult(campaign_name="test_campaign")
+        r.steps = steps
+        r.end_time = r.start_time + 5.0
+        return r
+
+    def test_total_steps(self):
+        r = self._make(
+            [
+                StepResult("tx1", "s1", "/out", _ok_qa(), 0.0),
+                StepResult("tx1", "s2", "/out", _ok_qa(), 0.0),
+            ]
+        )
+        assert r.total_steps == 2
+
+    def test_passed_count(self):
+        r = self._make(
+            [
+                StepResult("tx1", "s1", "/out", _ok_qa(), 0.0),
+                StepResult("tx1", "s2", "/out", _failed_qa(), 0.0),
+            ]
+        )
+        assert r.passed == 1
+
+    def test_failed_count(self):
+        r = self._make(
+            [
+                StepResult("tx1", "s1", "/out", _ok_qa(), 0.0),
+                StepResult("tx1", "s2", "/out", _failed_qa(), 0.0),
+            ]
+        )
+        assert r.failed == 1
+
+    def test_flagged_count(self):
+        r = self._make(
+            [
+                StepResult("tx1", "s1", "/out", _ok_qa(), 0.0),
+                StepResult("tx1", "s2", "/out", _flagged_qa(), 0.0),
+            ]
+        )
+        assert r.flagged == 1
+
+    def test_error_step_counts_as_failed_not_passed(self):
+        r = self._make(
+            [
+                StepResult("tx1", "s1", None, _ok_qa(), 0.0, error="disk full"),
+            ]
+        )
+        assert r.failed == 1
+        assert r.passed == 0
+
+    def test_duration_s_from_end_time(self):
+        r = CampaignResult(campaign_name="c")
+        r.start_time = 100.0
+        r.end_time = 115.0
+        assert r.duration_s == pytest.approx(15.0)
+
+    def test_to_dict_structure(self):
+        r = self._make([StepResult("tx1", "s1", "/out", _ok_qa(), 0.0)])
+        d = r.to_dict()
+        assert d["campaign_name"] == "test_campaign"
+        assert d["total_steps"] == 1
+        assert d["passed"] == 1
+        assert len(d["steps"]) == 1
+
+    def test_write_report(self, tmp_path):
+        r = self._make([StepResult("tx1", "s1", "/out", _ok_qa(), 0.0)])
+        out = tmp_path / "report.json"
+        r.write_report(str(out))
+        assert out.exists()
+        data = json.loads(out.read_text())
+        assert data["campaign_name"] == "test_campaign"
+
+    def test_write_report_creates_nested_dirs(self, tmp_path):
+        r = self._make([])
+        out = tmp_path / "nested" / "deep" / "report.json"
+        r.write_report(str(out))
+        assert out.exists()
+
+
+# ---------------------------------------------------------------------------
+# _run_script
+# ---------------------------------------------------------------------------
+
+
+class TestRunScript:
+    def _script(self, tmp_path, body: str) -> str:
+        s = tmp_path / "script.sh"
+        s.write_text("#!/bin/sh\n" + body)
+        s.chmod(s.stat().st_mode | stat.S_IEXEC)
+        return str(s)
+
+    def test_returns_stdout(self, tmp_path):
+        out = _run_script(self._script(tmp_path, 'echo "hello world"'))
+        assert out == "hello world"
+
+    def test_passes_args_to_script(self, tmp_path):
+        out = _run_script(self._script(tmp_path, 'echo "$1 $2"'), "configure", "arg2")
+        assert "configure" in out
+
+    def test_raises_on_nonzero_exit(self, tmp_path):
+        with pytest.raises(RuntimeError, match="exited 1"):
+            _run_script(self._script(tmp_path, "exit 1"))
+
+    def test_raises_on_relative_path(self):
+        with pytest.raises(RuntimeError, match="absolute"):
+            _run_script("relative/script.sh")
+
+    def test_raises_on_missing_file(self, tmp_path):
+        with pytest.raises(RuntimeError):
+            _run_script(str(tmp_path / "nonexistent.sh"))
+
+    def test_raises_on_timeout(self, tmp_path):
+        with pytest.raises(RuntimeError, match="timed out"):
+            _run_script(self._script(tmp_path, "sleep 60"), timeout=0.1)
+
+    def test_stderr_included_in_error_message(self, tmp_path):
+        with pytest.raises(RuntimeError) as exc_info:
+            _run_script(self._script(tmp_path, "echo 'bad thing' >&2; exit 1"))
+        assert "bad thing" in str(exc_info.value)
+
+
+# ---------------------------------------------------------------------------
+# _extract_tx_params
+# ---------------------------------------------------------------------------
+
+
+class TestExtractTxParams:
+    def test_returns_none_when_no_sdr_agent_attribute(self):
+        tx = SimpleNamespace()
+        assert _extract_tx_params(tx) is None
+
+    def test_returns_none_when_sdr_agent_is_none(self):
+        tx = SimpleNamespace(sdr_agent=None)
+        assert _extract_tx_params(tx) is None
+
+    def test_returns_none_when_sdr_agent_is_empty_dict(self):
+        tx = SimpleNamespace(sdr_agent={})
+        assert _extract_tx_params(tx) is None
+
+    def test_returns_signal_params(self):
+        tx = SimpleNamespace(
+            sdr_agent={
+                "modulation": "QPSK",
+                "symbol_rate": 1e6,
+                "center_frequency": 2.4e9,
+            }
+        )
+        result = _extract_tx_params(tx)
+        assert result == {"modulation": "QPSK", "symbol_rate": 1e6, "center_frequency": 2.4e9}
+
+    def test_strips_infra_key_node_id(self):
+        tx = SimpleNamespace(
+            sdr_agent={
+                "modulation": "BPSK",
+                "node_id": "node_abc123",
+            }
+        )
+        result = _extract_tx_params(tx)
+        assert "node_id" not in result
+        assert result == {"modulation": "BPSK"}
+
+    def test_strips_infra_key_session_code(self):
+        tx = SimpleNamespace(
+            sdr_agent={
+                "modulation": "FSK",
+                "session_code": "amber-peak-transmit",
+            }
+        )
+        result = _extract_tx_params(tx)
+        assert "session_code" not in result
+
+    def test_strips_none_values(self):
+        tx = SimpleNamespace(
+            sdr_agent={
+                "modulation": "QPSK",
+                "order": None,
+                "rolloff": 0.35,
+            }
+        )
+        result = _extract_tx_params(tx)
+        assert "order" not in result
+        assert result == {"modulation": "QPSK", "rolloff": 0.35}
+
+    def test_does_not_mutate_source_dict(self):
+        cfg = {"modulation": "QPSK", "node_id": "nid", "session_code": "code"}
+        tx = SimpleNamespace(sdr_agent=cfg)
+        _extract_tx_params(tx)
+        assert "node_id" in cfg
+
+    def test_full_sdr_agent_config(self):
+        tx = SimpleNamespace(
+            sdr_agent={
+                "modulation": "16QAM",
+                "order": 4,
+                "symbol_rate": 5e6,
+                "center_frequency": 915e6,
+                "filter": "rrc",
+                "rolloff": 0.35,
+                "node_id": "node_xyz",
+                "session_code": "some-code",
+            }
+        )
+        result = _extract_tx_params(tx)
+        assert result == {
+            "modulation": "16QAM",
+            "order": 4,
+            "symbol_rate": 5e6,
+            "center_frequency": 915e6,
+            "filter": "rrc",
+            "rolloff": 0.35,
+        }

tests/orchestration/test_labeler.py

@@ -5,7 +5,7 @@ import time
 import numpy as np
 import pytest
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.orchestration.campaign import CaptureStep
 from ria_toolkit_oss.orchestration.labeler import build_output_filename, label_recording
 
@@ -109,6 +109,38 @@ class TestLabelRecording:
         result = label_recording(rec, "iphone13_001", _wifi_step(), time.time())
         assert result is rec
 
+    def test_tx_params_none_by_default(self):
+        rec = label_recording(_simple_recording(), "iphone13_001", _wifi_step(), time.time())
+        tx_keys = [k for k in rec.metadata if k.startswith("tx_")]
+        assert tx_keys == []
+
+    def test_tx_params_written_as_tx_prefix_keys(self):
+        params = {"modulation": "QPSK", "symbol_rate": 1e6}
+        rec = label_recording(_simple_recording(), "dev", _wifi_step(), time.time(), tx_params=params)
+        assert rec.metadata["tx_modulation"] == "QPSK"
+        assert rec.metadata["tx_symbol_rate"] == pytest.approx(1e6)
+
+    def test_tx_params_multiple_fields(self):
+        params = {
+            "modulation": "16QAM",
+            "order": 4,
+            "symbol_rate": 5e6,
+            "center_frequency": 915e6,
+            "filter": "rrc",
+            "rolloff": 0.35,
+        }
+        rec = label_recording(_simple_recording(), "dev", _wifi_step(), time.time(), tx_params=params)
+        for k, v in params.items():
+            assert f"tx_{k}" in rec.metadata
+            assert (
+                rec.metadata[f"tx_{k}"] == pytest.approx(v) if isinstance(v, float) else rec.metadata[f"tx_{k}"] == v
+            )
+
+    def test_tx_params_empty_dict_writes_nothing(self):
+        rec = label_recording(_simple_recording(), "dev", _wifi_step(), time.time(), tx_params={})
+        tx_keys = [k for k in rec.metadata if k.startswith("tx_") and k != "tx_power_dbm"]
+        assert tx_keys == []
+
 
 # ---------------------------------------------------------------------------
 # build_output_filename

tests/orchestration/test_qa.py

@@ -3,7 +3,7 @@
 import numpy as np
 import pytest
 
-from ria_toolkit_oss.datatypes.recording import Recording
+from ria_toolkit_oss.data.recording import Recording
 from ria_toolkit_oss.orchestration.campaign import QAConfig
 from ria_toolkit_oss.orchestration.qa import QAResult, check_recording, estimate_snr_db
 

tests/orchestration/test_tx_executor.py

@@ -0,0 +1,153 @@
+"""Tests for TxExecutor — signal synthesis and step execution."""
+
+from __future__ import annotations
+
+import threading
+from unittest.mock import patch
+
+import numpy as np
+import pytest
+
+from ria_toolkit_oss.orchestration.tx_executor import TxExecutor
+
+
+def _cfg(modulation="QPSK", symbol_rate=100_000, steps=None):
+    return {
+        "id": "test-tx",
+        "type": "sdr",
+        "control_method": "sdr_agent",
+        "sdr_agent": {
+            "modulation": modulation,
+            "symbol_rate": symbol_rate,
+            "center_frequency": 0.0,
+            "filter": "rrc",
+            "rolloff": 0.35,
+        },
+        "schedule": steps or [{"label": "step1", "duration": 0.001, "power_dbm": -10}],
+    }
+
+
+# ---------------------------------------------------------------------------
+# Initialisation
+# ---------------------------------------------------------------------------
+
+
+class TestTxExecutorInit:
+    def test_stores_sdr_device(self):
+        ex = TxExecutor(_cfg(), sdr_device="pluto")
+        assert ex.sdr_device == "pluto"
+
+    def test_stop_event_created_when_not_supplied(self):
+        ex = TxExecutor(_cfg())
+        assert isinstance(ex.stop_event, threading.Event)
+        assert not ex.stop_event.is_set()
+
+    def test_accepts_external_stop_event(self):
+        ev = threading.Event()
+        ex = TxExecutor(_cfg(), stop_event=ev)
+        assert ex.stop_event is ev
+
+
+# ---------------------------------------------------------------------------
+# run() — schedule iteration
+# ---------------------------------------------------------------------------
+
+
+class TestTxExecutorRun:
+    def test_empty_schedule_returns_immediately(self):
+        cfg = _cfg(steps=[])
+        ex = TxExecutor(cfg)
+        ex.run()  # must not raise or block
+
+    def test_pre_set_stop_event_skips_all_steps(self):
+        ev = threading.Event()
+        ev.set()
+        ex = TxExecutor(_cfg(), stop_event=ev)
+        # If stop was set, _execute_step should never be called.
+        # run() should return cleanly without attempting synthesis.
+        ex.run()
+
+    def test_no_sdr_falls_back_to_simulation(self, monkeypatch):
+        """Without SDR hardware TxExecutor simulates by calling stop_event.wait."""
+        cfg = _cfg(steps=[{"label": "s", "duration": 0.001, "power_dbm": 0}])
+        waited = []
+        real_ev = threading.Event()
+
+        def _fake_wait(timeout=None):
+            waited.append(timeout)
+            return False
+
+        monkeypatch.setattr(real_ev, "wait", _fake_wait)
+
+        # Patch SDR init to always fail (forces simulation path)
+        with patch.object(TxExecutor, "_init_sdr", lambda self, *a, **kw: setattr(self, "_sdr", None)):
+            ex = TxExecutor(cfg, sdr_device="nonexistent_xyz", stop_event=real_ev)
+            ex.run()
+
+        assert len(waited) >= 1, "expected stop_event.wait to be called for simulation"
+
+
+# ---------------------------------------------------------------------------
+# _synthesise — all modulation types and filter types
+# ---------------------------------------------------------------------------
+
+
+class TestSynthesise:
+    @pytest.fixture(autouse=True)
+    def _ex(self):
+        self.ex = TxExecutor(_cfg())
+
+    def _synth(self, mod, num_samples=256):
+        return self.ex._synthesise(mod, sps=4, num_samples=num_samples, filter_type="rrc", rolloff=0.35)
+
+    @pytest.mark.parametrize("mod", ["BPSK", "QPSK", "8PSK", "16QAM", "64QAM", "256QAM"])
+    def test_psk_qam_returns_complex64_array(self, mod):
+        sig = self._synth(mod)
+        assert sig.dtype == np.complex64
+        assert len(sig) == 256
+
+    def test_fsk_returns_correct_length(self):
+        sig = self._synth("FSK")
+        assert len(sig) == 256
+
+    def test_ook_returns_correct_length(self):
+        sig = self._synth("OOK")
+        assert len(sig) == 256
+
+    def test_gmsk_returns_correct_length(self):
+        sig = self._synth("GMSK")
+        assert len(sig) == 256
+
+    def test_oqpsk_returns_correct_length(self):
+        sig = self._synth("OQPSK")
+        assert len(sig) == 256
+
+    @pytest.mark.parametrize("mod", ["BPSK", "QPSK", "16QAM", "FSK", "OOK", "GMSK"])
+    def test_samples_are_finite(self, mod):
+        sig = self._synth(mod)
+        assert np.all(np.isfinite(sig.real)), f"{mod}: non-finite real samples"
+        assert np.all(np.isfinite(sig.imag)), f"{mod}: non-finite imag samples"
+
+    def test_unknown_modulation_defaults_to_qpsk(self):
+        sig = self._synth("UNKNOWN_MOD_XYZ")
+        assert len(sig) == 256
+        assert sig.dtype == np.complex64
+
+    @pytest.mark.parametrize("filter_type", ["rrc", "rc", "gaussian", "rect", "none"])
+    def test_all_filter_types(self, filter_type):
+        sig = self.ex._synthesise("QPSK", sps=4, num_samples=128, filter_type=filter_type, rolloff=0.35)
+        assert len(sig) == 128
+
+    @pytest.mark.parametrize("n", [64, 128, 512, 1024])
+    def test_output_length_matches_requested_samples(self, n):
+        sig = self._synth("QPSK", num_samples=n)
+        assert len(sig) == n
+
+    def test_bpsk_output_is_complex_not_real(self):
+        sig = self._synth("BPSK")
+        # complex64 always has imag part; just check dtype
+        assert sig.dtype == np.complex64
+
+    def test_256qam_correct_length(self):
+        sig = self._synth("256QAM")
+        assert len(sig) == 256

tests/ria_toolkit_oss_cli/test.combine.py

@@ -7,7 +7,7 @@ import numpy as np
 import pytest
 from click.testing import CliRunner
 
-from ria_toolkit_oss.datatypes import Annotation, Recording
+from ria_toolkit_oss.data import Annotation, Recording
 from ria_toolkit_oss.io import load_recording, to_npy, to_sigmf
 from ria_toolkit_oss_cli.cli import cli