Most hobby-grade software defined radio setups don’t transmit. Of the few that do, most of them put out anemic levels around one milliwatt or so. If you want to do something outside of the lab, you’ll ...
For anyone getting into the world of Software Defined Radio, the first purchase should be an RTL-SDR TV tuner. With a cheap, $20 USB TV tuner, you can listen to just about anything between 50 and 1750 ...