The official firmware for Meshtastic, an open-source, off-grid mesh communication system.

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

Software defined radio receiver powered by GNU Radio and Qt.

Uses an ESP8266 module and an Arduino sketch to display the local time on a inexpensive analog quartz clock.

K3NG Arduino CW Keyer

RFQuack: the versatile RF-analysis tool that quacks!

FM RDS/TMC Transceiver

QMesh: a synchronized flooded mesh network for voice over LoRa

GNU Radio block for Digital Speech Decoder

Bursty modem utilities

tools for decoding digital ham communication

An ATSC 3.0 Transmitter for GNU Radio

GNU Radio DAB (digital audio broadcasting) module

M17 Demodulator in C++ (GPL)

The M17 Reflector, up to 26 modules (channels) handling both Stream and Packet modes.

Modular audio codec server

NorthSec Conference badge firmware