Cross-Platform Software-Defined Radio Application

Advanced repeater system software with EchoLink support for Linux including a GUI, Qtel - the Qt EchoLink client

HamMessenger is a portable device that uses a ham radio and the APRS protocol as a medium to send and receive text messages.

A GUI application for configuring and programming cheap DMR radios under Linux and MacOS X.

LoRa ESP32 KISS Bluetooth modem (for APRSDroid or aprs.fi iOS) + APRS-IS RX/TX iGate over WiFi + Digipeater + DV (with Codec2 Walkie-Talkie)

A simple morse tutor using the Koch method.

Radio firmware tool

WebSDR Backend

Support repository for the 'Digital Radio Receiver' / 'FT8 Decoder' / 'FT8 Radio' app.

Program for decoding FT8, FT4, JT65 and WSPR with Software Defined Radio receivers (SDR) and sending spots to spotting networks such as Reverse Beacon Network, PSKReporter and WSPRNet.

Arduino based LoRa KISS TNC

SSTV encoder/decoder C library.

A companion display & controls for the FT-817

Dual channel Arduino Nano milliwatt power meter for HF/VHF/UHF/SHF bands

This is a simple CW beacon project based on Arduino and Si5351 clock generator. It transmits a predefined message as morse code on a fixed frequency.

Single sketch LoRa Arduino TNC KISS modem for APRS or AX.25 networks

Amateur radio logbook software

A wifi adapter device for David Fainitski's ATU-100 antenna tuner (https://github.com/Dfinitski/N7DDC-ATU-100-mini-and-extended-boards)

This is simple half duplex radio communication device built with CC1101 module and Arduino Pro Micro (3.3V / 8MHz) using SmartRC library

OLHZN Arduino Mega High Altitude Weather Balloon APRS Radio Tracking & Data Logger