Function/ Capability	INPUT		OUTPUT
	Signal	Source	Signal	Destination
Ranging	Range code	2.2 GHz receiving and ranging equipment	Digital range	Data subsystem
1.7-2.2 GHz Doppler	Receiver/transmit frequency	2.2 GHz receiving and doppler equipment	Digital range rate	Data subsystem
Antenna Position	Antenna position	Antenna	Az and El	Data subsystem
Telemetry Data Processing	Data	FM and PCM ground stations	Composite digital FM/FM and baseband	Data subsystem
Tracking Data Processing	Data	Az and El encoders, 1.7-2.2 GHz range and range rate equipment	Composite digital data with Az, El, range, and range rate	Data subsystem
Command Formatting	Command formats control	STC via communications subsystem, SOC	Digital commands	1.7 GHz, 370-470 MHz command transmitting equipment
Command Checks	Detected RF and verification signals	Transmitting and telemetry equipment	Echo check and verification	Command formatting equipment and control and displays
Controls and displays	Operator action and observation		Visual displays, control signals	Operator's station equipment
Universal time			Visual indications, equipment signals	All subsystems

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