Radio Amateur Quiz Canadian License

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Question A-006-004-011

What circuit combines signals from an IF amplifier stage and a beat-frequency oscillator (BFO), to produce an audio signal?

Correct Answer

A product detector circuit

Explanation

A product detector is specifically designed to multiply (mix) the IF signal with the BFO signal. The difference frequency component of this product is the desired audio output for CW and SSB signals.

Warning: Generated by AI