Technician exam question T8A10
Subelement T8, SIGNALS AND EMISSIONS· Group T8A
T8A10
What is the approximate bandwidth of AM fast-scan TV transmissions?
- A.More than 10 MHz
- B.About 6 MHz (correct answer)
- C.About 3 MHz
- D.About 1 MHz
WhyAM fast-scan TV transmissions have an approximate bandwidth of about 6 MHz. AM fast-scan television, using the NTSC standard, occupies about 6 MHz of bandwidth to carry a full video signal along with its audio subcarrier, answer B. More than 10 MHz (A) overstates it, and 3 MHz and 1 MHz (C, D) are both narrower than a full broadcast-style TV 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.
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