Radio Amateur Quiz Canadian License

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Question A-006-002-006

It is very important that the oscillators contained in a superheterodyne receiver are:

Correct Answer

stable and spectrally pure

Explanation

Local oscillators (LOs) must be stable in frequency to prevent receiver drift. They must also be spectrally pure (low phase noise and few spurious outputs) to avoid generating unwanted mixing products and degrading receiver performance.

Warning: Generated by AI