Transmitters

What class of amplifier is distinguished by the presence of output throughout the entire signal cycle and the input never goes into the cutoff region?

Answer

Class A.

A Class A amplifier conducts throughout the entire input cycle and never reaches cutoff, giving low distortion but low efficiency.

Source: FCC Element 3 question pool, 3G

Not the answer

  • Class B.
  • Class C.
  • Class D.

Practice this

The FCC Element 3 (General Radiotelephone) exam is 100 questions and takes 75 correct — 75% — to pass. Element 1, the other half of the licence, is 24 questions and takes 18 correct. The app’s page carries a free ten-question test drawn from the same bank, marked as you go.

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