Technician exam question T8A04
Subelement T8, SIGNALS AND EMISSIONS· Group T8A
T8A04
Which type of modulation is commonly used for VHF and UHF voice repeaters?
- A.AM
- B.SSB
- C.PSK
- D.FM or PM (correct answer)
WhyFM or PM is the type of modulation commonly used for VHF and UHF voice repeaters. VHF and UHF voice repeaters commonly use FM or PM, since these modes provide the strong noise-quieting and the capture effect that suit local, full-quieting repeater coverage, answer D. AM (A) and SSB (B) are used mainly on HF, and PSK (C) is a data mode, not the analog voice modulation repeaters use.
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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