Discussion
The unwanted transfer of one station's modulation onto another, caused by non-linearity in the front end, is called ______.
Answer: B
This is cross-modulation, and it necessarily occurs before the intermediate frequency filter, since afterwards only one signal remains to modulate. Blocking is loss of gain caused by a strong signal without any transfer of modulation. Capture is the FM suppression of a weaker co-channel signal. And diagonal clipping is a detector defect. Each term names a distinct large-signal failure, and the distinctions are what make a fault report actionable.
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