Gqrx
Gqrx is a free and open source software defined radio receiver (SDR). It operates as a frontend using the hardware of an SDR to convert radio signals into a stream of digital data for processing by a computer.
sdr
software-defined-radio
radio-receiver
Gqrx: Free and Open Source Software Defined Radio Receiver
Gqrx is a free and open source software defined radio receiver (SDR). It operates as a frontend using the hardware of an SDR to convert radio signals into a stream of digital data for processing by a computer.
What is Gqrx?
Gqrx is an open source software defined radio (SDR) receiver designed to operate with hardware SDRs like the RTL-SDR. As an SDR, Gqrx takes advantage of the computing power of modern PCs to process received radio signals that have been converted to a digital data stream by the SDR hardware.
Key features of Gqrx include:
- Operates as a frontend for hardware SDRs like the RTL-SDR and Airspy
- Supports demodulation of a variety of analog and digital radio signals such as AM, NBFM, WBFM, USB, LSB, and more
- Displays FFT and waterfall displays for visualized signal analysis
- Records baseband I/Q data to file for later playback and analysis
- Open source software released under GPLv3, available for Linux, MacOS and Windows
Overall, Gqrx provides a powerful SDR interface that enables even hobbyists to leverage affordable SDR hardware to receive and process radio signals over a wide frequency range. Its open source model has enabled Gqrx to benefit from an active community supporting new features and updates as software defined radio technology continues advancing.
Gqrx Features
Features
- Software defined radio receiver
- Supports many common hardware SDRs
- Built on GNU Radio and the Qt GUI toolkit
- Works on Linux, Mac, and Windows
- Demodulates AM, FM, SSB, and digital modes
- Displays FFT and waterfall for signals
- Records IQ data to file
- Remote control through TCP and UDP
Pricing
- Open Source
Pros
Free and open source
Easy to use graphical interface
Supports many hardware SDRs
Cross-platform compatibility
Active development community
Cons
Limited built-in digital signal processing
Requires external SDR hardware
Some stability issues
Steep learning curve for advanced features
Official Links
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