This is an interesting point. Is it not possible to buy a SDR (software-defined radio) and broadcast 4G/5G signal on disallowed bands? Also, I remember watchi

This is an interesting point. Is it not possible to buy a SDR (software-defined radio) and broadcast 4G/5G signal on disallowed bands? Also, I remember watching a video about repairing an ancient Nintendo Entertainment System. If you remove the faraday cage (metal box) around the video out signal, it accidentally broadcasts on disallowed bands. (I don't remember all the details.)