Extra exam question E1F11
Subelement E1, COMMISSION RULES· Group E1F · 47 CFR §97.317
Which of the following best describes one of the standards that must be met by an external RF power amplifier if it is to qualify for a grant of FCC certification?
- A.It must produce full legal output when driven by not more than 5 watts of mean RF input power
- B.It must have received an Underwriters Laboratory certification for electrical safety as well as having met IEEE standard 14.101(B)
- C.It must exhibit a gain of less than 23 dB when driven by 10 watts or less
- D.It must satisfy the FCC’s spurious emission standards when operated at the lesser of 1500 watts or its full output power (correct answer)
WhyTo qualify for FCC certification, an external RF power amplifier must satisfy the FCC's spurious emission standards when operated at whichever is lower, 1500 watts or its full rated output power. §97.317 requires that, to qualify for FCC certification, an external RF power amplifier satisfy the FCC's spurious emission standards when operated at whichever is lower, 1500 watts or the amplifier's full rated output power, answer D. The listed gain and drive-power figures, and the description of a separate Underwriters Laboratory safety certification, aren't the actual FCC certification standard this rule sets.
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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