Your source for the most up-to-date terms, definitions, and acronyms for and about internet service providers.
Search for an ISP term
transponder
Last modified: Wednesday, September 25, 2002
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.
