
thumb|right|120px|An Ontario Highway 407 toll transponder circa 2009
thumb|right|120px|An Ontario Highway 407 toll transponder circa 2009
In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend of transmitter and responder.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).