Question Pool -- Category G1F

Which of the following standards must be met if FCC certification of an external RF amplifier is required?
A.
The amplifier must not be able to amplify a 28-MHz signal to more than ten times the input power
B.
The amplifier must not be capable of reaching its designed output power when driven with less than 50 watts
C.
The amplifier must not be able to be operated for more than ten minutes without a time delay circuit
D.
The amplifier must not be able to be modified by an amateur operator

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