Anybody can grab a USB TV tuner card and start monitoring the airwaves, but to get into the real meat of radio you’ll need your amateur radio license. Once you have that, the bandwidth really opens up ...
This is an VFO for use with old Ham Radio transceivers and with QRPs. I'm intending to use on the Ararinha-QRP-Triband project that I posted the PCB here. It's a 10x10cm board with a nice all metal, ...