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Satellite communication | Definition, History, & Facts | Britannica
Communications satellite - Wikipedia
Satellite Communications Systems: Systems, Techniques and …
Satellite communication - Orbit, Signals, Relay | Britannica
Communications Satellites - National Air and Space Museum
Satellite Communication System - an overview - ScienceDirect
Communications Satellites: Making the Global Village Possible
Satellite Communication - Introduction - Online Tutorials Library
Satellite Basics - Intelsat
Satellite communication - Spacecraft, Orbit, Signals | Britannica