Question : The device in a communication satellite which receives signals from an earth station and transmits them in different directions is______.
Option 1: transformer
Option 2: transistor
Option 3: transponder
Option 4: transducer
Correct Answer: transponder
Solution : The correct option is a transponder.
The transponder is the name for the component located on communication satellites that receive, amplify, and retransmit signals from earth stations. Transponders refer to the channels of a communications satellite since each one has its transceiver or repeater. Multiple video and audio channels may pass via a single transponder on a single wideband carrier thanks to digital video data compression and multiplexing.
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