[ethbr0]

Stupid question that I've always been curious about, driving around.

Can an old C-band (large) satellite dish be used for transmitting as well as receiving?

If so, would there be any benefit to doing so, versus smaller/K* dish dimensions?

Know this is a basic question, but RF isn't my field.

[naikrovek]

yes.

no advantage over the smaller more modern dishes, as the more modern dishes are made with better shape tolerances, so they can be smaller and still get the same amount of signal to the satellite.