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?
It must produce full legal output when driven by not more than 5 watts of mean RF input power
It must have received an Underwriters Laboratory certification for electrical safety as well as having met IEEE standard 14.101(B)
It must exhibit a gain of less than 23 dB when driven by 10 watts or less
It must satisfy the FCC’s spurious emission standards when operated at the lesser of 1500 watts or its full output power✓Richtige Antwort
Erklärung
One of the certification standards is that the amplifier meets the spurious emission limits when operated at the lesser of 1500 watts or its full output power. The gain limit in the rules is 15 dB rather than 23 dB, no 5-watt drive figure appears, and no safety-laboratory listing is part of certification.