41 lines
1.7 KiB
ReStructuredText
41 lines
1.7 KiB
ReStructuredText
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.. _rtl:
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RTL-SDR
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=======
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RTL-SDR (RTL2832U Software Defined Radio) is a low-cost USB dongle originally designed for digital TV reception
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that has been repurposed as a wideband software-defined radio. RTL-SDR devices are popular for hobbyist use due to
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their affordability and wide range of applications.
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The RTL-SDR is based on the Realtek RTL2832U chipset, which features direct sampling and demodulation of RF
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signals. These devices are commonly used for tasks such as listening to FM radio, monitoring aircraft traffic
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(ADS-B), receiving weather satellite images, and more.
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Supported Models
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- **Generic RTL-SDR Dongle:** The most common variant, usually featuring an R820T or R820T2 tuner.
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- **RTL-SDR Blog V3:** An enhanced version with additional features like direct sampling mode and a bias tee for
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powering external devices.
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Key Features
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------------
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- **Frequency Range:** Typically from 24 MHz to 1.7 GHz, depending on the tuner chip.
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- **Bandwidth:** Limited to about 2.4 MHz, making it suitable for narrowband applications.
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- **Connectivity:** USB 2.0 interface, plug-and-play on most platforms.
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- **Software Support:** Compatible with SDR software like SDR#, GQRX, and GNU Radio.
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Limitations
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-----------
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- Narrow bandwidth compared to more expensive SDRs, which may limit some applications.
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- Sensitivity and performance can vary depending on the specific model and components.
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- Requires external software for signal processing and analysis.
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Further Information
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-------------------
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- `Official Website <https://www.rtl-sdr.com/>`_
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- `RTL-SDR Quick Start Guide <https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/>`_
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