Communications 1 min read

Transponder

Last Updated May 24, 2021 1:57 pm

A wireless communications device usually attached to a satellite. A transponder receives and transmits radio signals at a prescribed frequency range. After receiving the signal a transponder will at the same time broadcast the signal at a different frequency. The term is a combination of the words transmitter and responder. Transponders are used in satellite communications and in location, identification and navigation systems.

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