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RTL-SDR (RTL2832U) and software defined radio news and projects. Also featuring Airspy, HackRF, FCD, SDRplay and more.
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      • Terrestrial
        • P25 P1 Digital Voice Decoding
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        • Analyzing GSM Signals
        • DRM Radio Decoding
        • Decoding 433 MHz ISM Band Weather Stations
      • Single Board Computer
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        • Performing Replay Attacks with RTL-SDR and RpiTX
      • Radio Astronomy
        • Radio Astronomy Overview
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        • Measuring Filter Characteristics & VSWR
        • SpyServer Tutorial
        • Using the V3 Bias Tee on PiAware
        • Properly Positioning a Preamp/LNA
    • Product Reviews
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        • Airspy HF+ Review
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        • LimeSDR Review
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        • KiwiSDR Review
        • FlightAware Prostick vs Prostick Plus
        • HackRF PortaPack Review
      • SpyVerter Upconverter
      • 9A4QV Folded Monopole ADS-B Antenna
      • FlightAware ADS-B Antenna and Filter
      • Outernet LNA and Patch Antenna
      • moRFeus Review
    • Interesting
      • TEMPEST with SDR
      • Listening to HD Radio
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      • Listening to SCA Broadcasts
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      • Transmitting with a Raspberry Pi
    • Quick Start Guides
      • RTL-SDR QSG
      • V3 Features Users Guide
      • SDRSharp Users Guide
      • PlutoSDR QSG
    • Direct Sampling Mod
    • Roundup of Software Defined Radios
    • KerberosSDR
      • KerberosSDR Quickstart Guide
      • Direction Finding Android Demo
      • Direction Finding Android Tutorial
      • SignalsEverywhere Direction Finding Tutorial
      • Networked Direction Finding
      • Measuring Traffic Volumes with Passive Radar
  • Software
    • RTL-SDR Supported Software
    • List of SDRSharp Plugins
    • Experimental Drivers
      • Experimental HF Driver
      • Manual gain controls and decimation driver
      • ExtIO with Decimation & Tuner Bandwidth Controls
      • Keenerds Driver
      • L-Band Heat Issue Driver
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Monthly Archives: December, 2025

  • DSDPlus Public Release Updated & Fast Lane Changes December 9, 2025
  • rtl_haos: An rtl_433 to Home Assistant Bridge December 2, 2025
  • Frugal Radio: Using a 25 Dollar PC for Decoding with SDRs December 1, 2025
    • Newer posts
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Recent Posts

  • FreeDV RADE: An Open-Source Digital Voice Mode for HF that Beats SSB at Low SNR
  • PZSDR: New AMD Zync Ultrascale Based SDR Crowd Funding on Crowd Supply
  • SDR++ IAK: A Modified Version of SDR++ Available on the Google Play Store
  • An HTML Browser Page that Uses Display Pixel Clock EMI Leakage to Transmit VHF Morse Code
  • Overhead 1090: New iOS/tvOS ADS-B Mapping App for Local PiAware/dump1090 Receivers

Recent Comments

  • xkremator on Receiving ADS-B With a Semtech LR2021 LoRa Chip: “Two more of LR2021-based devices that can receive ADS-B 1) https://github.com/lyusupov/SoftRF/wiki/Prime-Edition-MkIV 2) https://github.com/lyusupov/SoftRF/wiki/Card-Edition-MkIII” Sep 4, 05:49
  • KC1WZQ on FreeDV RADE: An Open-Source Digital Voice Mode for HF that Beats SSB at Low SNR: “Bit late but never late than never haha. Nice” Sep 3, 20:32
  • nwkn1g on VibeSDR Jr: Apple Watch RTL-SDR, KiwiSDR, UberSDR Client now Available: “I really like integrating it onto the watch! Very cool!” Sep 2, 01:34
  • Micha on Exploring Russian and International Analog TV From Leaky Cable TV Networks via the Airspy Server Network: “Das gab es lange nicht mehr und auf diesen Moment habe ich ewig gewartet. Analoges Fernsehen aus Africa. Über Ryans…” Sep 1, 20:47
  • phirephoto on NyxScope: A Windows Multi-Protocol SDR Decoder Program with Multiple Digital Native Decoders: “I couldn’t get Mykola to ‘work’…. Win11 i5-9500, 64 GB of RAM, clicking on anything in Mykola would freeze it – goes…” Sep 1, 18:27
  • phirephoto on NyxScope: A Windows Multi-Protocol SDR Decoder Program with Multiple Digital Native Decoders: “I set it up to monitor a local paging frequency and it’s working – I’m seeing pages that I know…” Sep 1, 15:35
  • Thomas on KrakenSDR now in stock in our shop: “I was advised to get one to run a radio astronomy array. Is there an alterntive to the KrakenSDR?” Aug 30, 23:52

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What is RTL-SDR

The RTL-SDR is an ultra cheap software defined radio based on DVB-T TV tuners with RTL2832U chips. The RTL-SDR can be used as a wide band radio scanner. It may interest ham radio enthusiasts, hardware hackers, tinkerers and anyone interested in RF.
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