Miniature 80-Metre Magnetic Loop Antenna
Discover the compact SM0VPO miniature magnetic loop antenna for the 80-metre amateur band. This guide…
Antenna
HF
QRP
SDR
Pebble HF: The $50 Open-Source QRP Transceiver That Wants to Get You on HF
Pebble HF is an open-source, single-band 20m QRP transceiver built by the Ham Radio Duo…
Guide
radio
Reception
SDR
Setting Up OpenWebRX with the RTL-SDR V4 Dongle: A Complete Guide
A complete walkthrough of building a web-accessible SDR receiver using the RTL-SDR V4 dongle and…
SDR
sBitx Version 5.4 Released: New FM Mode and Major Performance Improvements
sBitx 5.4 is a major release for this open source HF transceiver, adding FM mode,…
Circuits
HF
Classic 2-Transistor Microphone Compressor
Ever wondered how classic audio gear tames loud volume spikes without complex integrated circuits? This…