Comment Re:Some questions (Score 2) 491
I suspect, and I have zero knowledge of this system, that the satellite used has linear transponders that re-transmit the exact signal it receives. This means that both amplitude and frequency domain are relayed and received at the ground station. I imagine that the ground station is a software defined radio that digitizes and records everything that is passed though the IF.
Again, I know nothing of this system, but if I was going to build one, that's how I would do it.