But you can obscure command and control signals to space based stations. You don't want people knowing how to reprogram or turn off your satellite. 47 CFR § 9

But you can obscure command and control signals to space based stations. You don't want people knowing how to reprogram or turn off your satellite. 47 CFR § 97.211 - Space telecommand station. (b) A telecommand station may transmit special codes intended to obscure the meaning of telecommand messages to the station in space operation.