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Sampling an analog signal produces pulse amplitude modulation.

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Sampling an analog signal produces pulse amplitude modulation.

(a) True

(b) False

I have been asked this question during a job interview.

This question is from Data Conversion in portion Digital Communication Techniques of Avionics

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Correct option is (a) True

Best explanation: The modulator acts like a gating circuit that allows the analog wave for a particular time period producing a pulse. The amplitude of the pulse is the input to the ADC which converts the voltage into binary numbers.

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