Low cost software radio platform
ArduPlane, ArduCopter, ArduRover, ArduSub source
Flipper Zero firmware source code
ESP8266 Analog Broadcast Television Interface
WSPR Scheduling application with automatic antenna selection
WxLLS is a single station lightning location system.
EFHW Sloper Antenna Calculator for Ham Radio
Real time satellite tracking and orbit prediction
Portable rotator for amateur satellite tracking
Satellite tracking software
A GPSDO with superior performance using a few cheap components
A free, open-source electronics calculator suite for Linux
70cm Amateur Radio Fox Hunt CW receiver - Heltec V3 ESP32 LoRa Board
Arduino Mega 2560 + Ethernet Shield to control 8 Relays for MFJ-993b
Simple cheap DIY RC receiver/handler.
Antenna calculations - Cálculo de Antenas
A Blender script to procedurally generate 3D spaceships
RigExpert AA-xxx antenna analyzer data extraction tool
CDMA PN Conflict Tool
RFOPTI provides the structure for calculating path loss at drive data