Turn your Android phone into Amateur Radio Codec2/OPUS APRS enabled DV handheld transceiver (Bluetooth/BLE/USB/TCPIP KISS/Sound modem client for DV digital voice communication)

M17 standard specification

ESP32 based Codec2/OPUS DV hobby UHF 3d printed handheld transceiver aka walkie-talkie

A modern, modular, and performance enhanced C/C++ decoder for digital voice. DMR, P25, NXDN, YSF, and more.

M17 C library

Codec2 low bit rate audio codec Arduino library for ESP32

Standalone M17 Project Voice and Data Packet Encoder and Decoder

A wxWidget free port of ircddbGateway with some more (not yet all implemented) features ;)

Performance‑enhanced IMBE/AMBE vocoder primitives with modern CMake packaging.

Digital Voice Communication System

Modern, high-performance DMR repeater networking system in Go with Vue3 dashboard - Drop-in replacement for hblink3

Use a FreeDV modem and amateur radio HF transceiver from a Discord voice call!

Pi-Star OS - Raspberry Pi OS for Amateur Radio Digital Voice