Exactly... it can be a lot more than just 'communicating' with some appliance you bought. As a ham experimenter/hacker, there are so many -challenges- you can

Exactly... it can be a lot more than just 'communicating' with some appliance you bought. As a ham experimenter/hacker, there are so many -challenges- you can try to meet. Line-of-sight is way too easy. Say you're in the US; think you can talk to someone in Europe or Australia with 3 watts? You can, maybe, after you learn a bunch. If you're good enough. Or not. Might that be easier with data? Maybe. How sharp will your filters need to go? How far down in the noise your chip? Nobody else will know, but you will. Or, if you own a farm, and miles of wire, try that at 475kHz. Be careful, you might get pulled into radio astronomy.