What term describes a wireless device that both transmits and responds to incoming signals?

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Prepare for the Georgia EOPA AVTF Level 3 Test with flashcards and multiple-choice questions. Every question includes hints and explanations to help you succeed!

Multiple Choice

What term describes a wireless device that both transmits and responds to incoming signals?

Explanation:
A transponder is a device that both receives an incoming signal and automatically sends back a response. The name itself reflects its dual role as a transmitter and a responder, often replying on a different frequency or with coded data. This automatic reply distinguishes it from the other options: a transmitter only sends; a receiver only listens; a repeater simply relays the received signal to extend range without generating a dedicated response. In contexts like radar or RFID, the transponder specifically “answers” the interrogation, which is why this term fits best.

A transponder is a device that both receives an incoming signal and automatically sends back a response. The name itself reflects its dual role as a transmitter and a responder, often replying on a different frequency or with coded data. This automatic reply distinguishes it from the other options: a transmitter only sends; a receiver only listens; a repeater simply relays the received signal to extend range without generating a dedicated response. In contexts like radar or RFID, the transponder specifically “answers” the interrogation, which is why this term fits best.

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