# f4exb/sdrangel

SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay and FunCube

Repository: https://github.com/f4exb/sdrangel
Canonical: https://ross.abutalabs.com/products/sdrangel
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: sdr, receiver, transmitter, airspy, rtl-sdr, hackrf, bladerf, sdrplay, d-star, dmr, ysf, dpmr, plutosdr, airspyhf, limesdr, funcube-dongle, funcube
Last push: 2026-08-23T21:25:54+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 100
- inputs: {"age_days": 4021, "days_push": 10, "days_rel": 14, "gap_med": 25.5, "n_releases_24m": 21}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3935, forks 578 (observed 2026-08-28T04:08:30.089770+00:00)

## What it is
SDRangel is an open-source software-defined radio (SDR) receiver and transmitter application with a Qt5/OpenGL-based GUI, supporting a wide range of SDR hardware including Airspy, RTL-SDR, HackRF, BladeRF, LimeSDR, PlutoSDR, SDRplay, and FunCube Dongle. It also functions as a signal analyzer and supports various digital communication modes such as D-Star, DMR, YSF, and dPMR.

## Use cases
- receive and decode radio signals with an RTL-SDR dongle
- transmit signals using a HackRF or BladeRF
- analyze RF signals with a spectrum analyzer view
- decode digital voice modes like DMR and D-Star
- use a LimeSDR or PlutoSDR for general SDR experimentation
- run a headless SDR server controlled remotely via web interface

## When to choose
- you need a full-featured GUI application for SDR reception and transmission
- you want broad hardware support across many SDR devices in one program
- you need digital mode decoding (DMR, D-Star, YSF, dPMR) built in
- you want both a desktop GUI and a headless server option with remote control

## When to avoid
- you need a lightweight command-line-only SDR tool
- you want a simple waterfall-only receiver without advanced features
- you need a web-based SDR interface as the primary experience (see SDRangelcli instead)
- your hardware is not among the supported device list

## Facets
- artifact type: application
- maturity: active
- function: gui, audio-processing, data-visualization
- domain: hardware, cross-platform
- platform: windows, cpp
- tags: sdr, software-defined-radio, rtl-sdr, hackrf, airspy, bladerf, limesdr, plutosdr, sdrplay, signal-analyzer, receiver, transmitter, digital-modes, dmr, d-star, qt5, opengl, signal-processing, radio, linux, macos, desktop, qt

## Member repositories
- f4exb/sdrangel (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:30.089770+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:24:39.276946+00:00, confidence not recorded.
  - readme: https://github.com/f4exb/sdrangel (fetched 2026-08-28T04:08:30.089770+00:00, sha b99591fb7577)
- Data as of 2026-08-30T08:39:29.467469+00:00.