Satellite Ground Systems Glossary
55 terms total — 7 showing — Last updated 15 Sep 2026
Look Angle
The azimuth and elevation angles at which a ground-station antenna must be pointed to establish a line-of-sight radio path to a given satellite.
TT&C
The subsystem and associated ground station functions responsible for monitoring spacecraft health (telemetry), determin...
TWTA
A high-power vacuum-tube amplifier used in satellite ground station transmit chains to produce the high output power lev...
ULPC
A technique by which a ground station automatically increases its transmit power to compensate for signal attenuation ca...
UPC
An automated system used at a satellite ground station to increase transmit power during signal attenuation events such...
Uplink
The radio frequency transmission path from an earth station to a satellite. Contrasted with downlink, which is the path...
Uplink Power Control
An automatic system that increases the earth station's transmit power during propagation fade events to maintain a stabl...
VSAT
A compact satellite ground terminal, typically with a dish antenna of 0.75–3.8 m diameter, used for broadband internet,...