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IT
4th Semester
IT-404
Unit 2 Notes

IT-404 Analog & Digital Communication Unit 2 Notes

Notes and important questions for unit 2: Amplitude Modulation.

Unit 2 · Short notes Amplitude Modulation Purpose of modulation and classification of amplitude modulation techniques · Double‑sideband full‑carrier (DSB‑FC) modulation and modulation index · Frequency spectrum of AM wave, linear versus over‑modulation · Power relations and transmission efficiency in AM · Modulation by a complex signal and bandwidth of AM · AM modulators: square‑law and switching modulators, advantages/disadvantages

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