Radio Amateur Quiz Canadian License

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Question A-005-004-006

What kind of input signal is used to test the amplitude linearity of a single-sideband phone transmitter while viewing the output on an oscilloscope?

Correct Answer

Two audio-frequency sine waves

Explanation

A two-tone test, using two non-harmonically related audio sine waves, is a standard method to evaluate the linearity of an SSB transmitter by observing the output RF envelope for intermodulation distortion products.

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