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In digital systems, analog signals are first digitized with PCM converters before modulation.

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In digital systems, analog signals are first digitized with PCM converters before modulation.

(a) True

(b) False

I have been asked this question in examination.

My question is based upon Ground Stations in division Satellite Communication of Avionics

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Right answer is (a) True

Easy explanation: In digital systems, analog signals are first digitized with PCM converters. The resulting serial digital output is then used to modulate a QPSK modulator.

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