Technician exam question T7A07
Subelement T7, PRACTICAL CIRCUITS· Group T7A
T7A07
What is the function of a transceiver’s PTT input?
- A.Input for a key used to send CW
- B.Switches transceiver from receive to transmit when grounded (correct answer)
- C.Provides a transmit tuning tone when grounded
- D.Input for a preamplifier tuning tone
WhyA transceiver's PTT input switches it from receive to transmit when grounded. A transceiver's push-to-talk input switches the radio from receive to transmit when it's grounded, the simplest and most common PTT interface, answer B. A dedicated CW key input (A), a transmit tuning tone (C), and a preamplifier tuning tone (D) are all different functions unrelated to what grounding the PTT line actually does.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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