Technician exam question T8A09
Subelement T8, SIGNALS AND EMISSIONS· Group T8A
T8A09
What is the approximate bandwidth of an FM voice signal on VHF repeaters?
- A.Less than 500 Hz
- B.About 150 kHz
- C.Between 10 and 15 kHz (correct answer)
- D.Between 50 and 125 kHz
WhyAn FM voice signal on VHF repeaters has an approximate bandwidth between 10 and 15 kHz. An FM voice signal on VHF repeaters typically occupies between about 10 and 15 kHz, wide enough to carry the deviation and audio bandwidth FM voice uses, answer C. Less than 500 Hz (A) describes something closer to CW, and 150 kHz and 50 to 125 kHz (B, D) are both far wider than a narrowband FM voice channel actually needs.
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.
Related questions
- T8A01Which of the following is a form of amplitude modulation?
- T8A02What type of modulation is commonly used for VHF packet radio transmissions?
- T8A03Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?
- T8A04Which type of modulation is commonly used for VHF and UHF voice repeaters?
- T8A05Which of the following signal types has the narrowest bandwidth?