Extra exam question E8A07
Subelement E8, SIGNALS AND EMISSIONS· Group E8A
What determines the PEP-to-average power ratio of an unprocessed single-sideband phone signal?
- A.The frequency of the modulating signal
- B.Speech characteristics (correct answer)
- C.The degree of carrier suppression
- D.Amplifier gain
WhySpeech characteristics determine the PEP-to-average power ratio of an unprocessed single-sideband phone signal. The PEP-to-average power ratio of an unprocessed SSB phone signal is determined by speech characteristics, since it's the natural peaks and valleys of a talker's voice that create the gap between momentary peak power and the signal's average power over time, answer B. Modulating frequency, degree of carrier suppression, and amplifier gain don't determine this particular ratio.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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