- a radio or radar transceiver that automatically transmits electrical signals when actuated by a specific signal from an interrogator
- any of the transceivers on a geostationary satellite that automatically relay signals, as of audio and video channels, from and to an earth station
Origin of transponderblend of transmitter and amp; responder
Origin of transpondertran(smitter) + (re)sponder.
transponder - Computer Definition
A radio or radar transmitter-receiver. 1. In a telecommunications context, a transponder is a satellite repeater, which accepts the weak incoming signals from the Earth stations, boosts them, shifts them from the uplink to the downlink frequency, and retransmits them to the Earth stations in what is known as a bent pipe network configuration. Contemporary satellites commonly support as many as 28
A receiver/transmitter on a communications satellite. It receives a microwave signal from earth (uplink), amplifies it and retransmits it back to earth at a different frequency (downlink). A satellite has several transponders.