My brief attempt at learning about Software Defined Radio on Ubuntu

You gotta get a downconverter and a bias-tee to power it (or use the bias-tee built in the RTL-SDR if the downconverter is 4.5 volt - most aren't though). Then you can access high-freq. 10+ GHz must be a satellite right? There's no way for terrestrial to work at that freq.

And yes this is all easy this day. Hard stuff comes when you transmit, and harder yet when you do both. Then you can do crazy things, but that isn't at all easy... Like https://hforsten.com/ is doing. Still accessible from components pricing and regulations perspective, to almost everyone.

Huh, I had no idea that radio tech has become so accessible to an unfamiliar hobbyist with a bit of curiosity. Enjoyable read!

Cool post!