low cost software radio platform

KiwiSDR: BeagleBone web-accessible shortwave receiver and software-defined GPS (archived)

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

(unmaintained; see the forks)

Ham Radio hat for Raspberry PI

The ircDDB Gateway for D-Star

HAM radio multiprotocol dstar reflector server

Open source speech codec designed for communications quality speech between 700 and 3200 bit/s. The main application is low bandwidth HF/VHF digital radio.

LoRa Basics™ Station - The LoRaWAN Gateway Software

Web Interface for DXSpider hamradio cluster

A web portal for svxlink reflector

a map of Meshtastic nodes

GNU Radio decoder for Amateur satellites

A robust version of the JPEG image format, for transmission over an unreliable medium.

A robust version of the JPEG image format, for transmission over an unreliable medium.

Gpredict satellite tracking application