different between retransmitter vs retransmitted

English

re- +? transmitter

retransmitter (plural retransmitters)

Any device that retransmits a signal.
- 2007, Joseph D. Straubhaar, World Television: From Global to Local
  For example, much of the population in many rural areas gets television by satellite dishes hooked to local retransmitters, not even affiliate stations, just literal retransmitters.

retransmitted

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