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transponder |
Also found in: Medical, Acronyms, Wikipedia | 0.24 sec. |
transponderA 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. transponder [tranz′pän·dər] (communications) A transmitter-receiver capable of accepting the challenge of an interrogator and automatically transmitting an appropriate reply. A receiver-transmitter, such as on satellites, which receives a transmission and retransmits it at another radio frequency. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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