Modular Open Source Radio Firmware

Build a SDR SW/MW/LW Receiver with a Raspberry Pi Pico

Quansheng UV-K5 Firmware

基于最新2025年题库的业余无线电执照考试模拟应用，支持A/B/C三类考试，提供完整的模拟考试、智能化练习、关键词搜索、报名照片处理等功能，采用Next.js 15 + React 19技术栈，支持PWA离线使用，数据本地存储确保隐私安全。

a DIY Antenna Rotator by BG5DIW

A collection of cool projects to make!

Remotely open audio channels and a serial port to an Icom RS-BA1 server (for ex. Icom IC-705 transceiver).

Arduino Library for SINGLE-CHIP BROADCAST FM RADIO TUNER RDA5807

网页 UV-K5 写频工具箱

Quansheng UV-K5

A radio repeater controller (supporting both simplex and duplex operation modes) for the RaspberryPi.

Erics Master Frequency lists for RF tuning

BITX40 sketch for Raduino

Run a DMR network server with a frontend, authentication, private and group calls and a parrot all in a single binary

业余无线电助手，基于Nonebot2

Amateur Radio Exam notes for Singapore

Web Interface for DXSpider hamradio cluster

IRC-like messaging system for HAM packet radio with additional APRS support.

AFSK 1200 X.25 APRS Modulator & Demodulator

Amateur radio related code written in go