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Question 191

What does an S meter measure?

  1. Carrier suppression
  2. Impedance
  3. Received signal strengthCorrect answer
  4. Transmitter power output

Explanation

The S meter is driven from the receiver's AGC voltage, which tracks the amplitude of the incoming signal, so what it reports is received signal strength. It knows nothing about transmitter power, impedance or carrier suppression.

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Question 191: What does an S meter measure? · FCC General Class (Element 3) · Questena