and he’s proved there’s plenty of scope for old-fashioned radio homebrewing in an SDR with his RADIG project. It’s an SDR transceiver for HF which does all the work of quadrature splitting ...

Amateur radio ... kits that are focused on low power transmission, called “QRP” in ham radio parlance. What is it? It’s a pocket sized four band (80, 40, 30, 20 Meters) software defined ...