Oh. Yeah most bands used by satellites are also regulated.

You can do this same attack on any antenna, noise can’t be protocolled away. Repeating both signal and noise is a downside to bent-pipe setups.

Input frequencies are regulated via band-pass filters.

Typically satellites have beams they turn on and off to service different areas, with one beam pointing towards the RAN that receives the data rather than just repeating a broadcast out to everywhere the satellite can theoretically reach. For mobile telecom backhaul via satellite it is standardized that the data should be encrypted for untrusted transport links so this seems to me like an issue of not following specs.