There are 35 repositories under amateur-radio topic.
📡 An AX.25 packet radio chat protocol with support for digital signatures and binary compression. Like IRC over radio waves.
HamMessenger is a portable device that uses a ham radio and the APRS protocol as a medium to send and receive text messages.
Library for the Si5351 clock generator IC in the Arduino environment
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)
LoRa ESP32 KISS Bluetooth modem (for APRSDroid or aprs.fi iOS) + APRS-IS RX/TX iGate over WiFi + Digipeater + DV (with Codec2 Walkie-Talkie)
TR-9 - M17 protocol compatible handheld - schematics, PCB design files, BOM.
K3NG Arduino Amateur Radio Rotator Controller
Audio streaming application for Amateur Radio purposes
Remotely open audio channels and a serial port to an Icom RS-BA1 server (for ex. Icom IC-705 transceiver).
Custom firmware for Vaisala RS41 and Graw DFM-17 radiosondes with support for amateur radio use. Ideal for tracking high-altitude balloons. Supported modes include APRS, Horus 4FSK mode, CATS, morse code (CW) and additional digital modes like WSPR and FT8 via Si5351.
Generate APRS Passcode :closed_lock_with_key: using PHP for use in Amateur Radio APRS Applications when connecting to the APRS-IS Network.
Minimal SDR with Lattice MachXO2 FPGA. And a port to Cyclone3 by Steven Groom
A Library with Amateur Radio specific Functions and Methods
Deep Neural Network for Morse decoding
AREDN develop branch porting on top of OpenWRT 19.07.0
A controller for a multi-band homebrew SSB/CW transceiver, targeting Arduino Nano and si5351 PLL.
A simple and easy Arduino / Pi Pico / ESP8266-powered WSPR, FT8, and FT4 beacon system which uses NTP + DS3231 RTC for timing. Super extensible! Now comes with optional GPS support.
Erics Master Frequency lists for RF tuning
Documentation for Phase 4 Ground