gqrx-sdr/gqrx

Software defined radio receiver powered by GNU Radio and Qt. observed · 2026-10-15

github.com/gqrx-sdr/gqrx · homepage · C++ · GPL-3.0 (copyleft) observed · 2026-10-15

Health v2 · maintenance only

70/100

Activity 98
Release rhythm 16
Longevity 100

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

gap_med: 178
age_days: 5836
days_rel: 511
days_push: 16
n_releases_24m: 2

Full methodology

Adoption not part of the score

3706 stars · 591 forks observed · 2026-10-15

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Gqrx is an open source software defined radio (SDR) receiver built on GNU Radio and the Qt GUI toolkit. It supports a wide range of SDR hardware (RTL-SDR, Airspy, HackRF, Funcube Dongle, BladeRF, USRP, SoapySDR) and can operate as an AM/FM/SSB receiver or an FFT-only spectrum analyzer.

Use cases

listen to AM/FM/SSB radio with an RTL-SDR dongle
view an FFT spectrum plot and waterfall from an SDR device
record and replay raw baseband I/Q data
stream received audio over UDP to external decoders
remotely control an SDR receiver over TCP
decode NOAA APT weather satellite images
use a HackRF or Airspy as a spectrum analyzer

When to choose

you want a ready-to-use GUI receiver for common SDR hardware on Linux or Mac
you need demodulation modes like AM, SSB, CW, FM-N, FM-W with AGC and squelch
you want network hooks (TCP remote control, UDP audio streaming) for integration with other tools

When to avoid

you need a headless or scriptable-only SDR processing pipeline
you require Windows as a first-class supported platform (only available via radioconda)
you want to build custom signal-processing flows rather than use a fixed receiver application

Facets

application · maturity active

audio-processing gui developer-tools hardware cross-platform windows cpp sdr software-defined-radio rtl-sdr hackrf airspy gnuradio spectrum-analyzer fft waterfall radio-receiver qt demodulation iq-processing real-time linux macos desktop

3 sources

readme: https://github.com/gqrx-sdr/gqrx · fetched 2026-10-15 · 5482e9a7043e
homepage: http://gqrx.dk · fetched 2026-08-29 · 8a0be58f17d6
site_page: https://www.gqrx.dk/category/doc · fetched 2026-08-29 · 018dbd0ae05a

Member repositories

Repository	Role	Health v2
gqrx-sdr/gqrx	main	70

For agents

markdown · JSON · MCP: product_card(name="gqrx-sdr/gqrx")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem