An amplifier for restoring the strength of a transmitted signal WordNet 3.0 & Open English WordNet

A broadcast relay station, also known as a satellite station, relay transmitter, broadcast translator, re-broadcaster, repeater or complementary station, is a broadcast transmitter which repeats the signal of a radio or television station to an area not covered by the originating station. Wikipedia

A transmitter which repeats or transponds the signal of another Wikipedia Disambiguation

Broadcast transmitter which repeats the signal of a radio or television station to an area not covered by the originating station Wikidata