In a communication system, what is meant by modulation? State any two types of modulation.
In a communication system, what is meant by modulation? State any two types of modulation.
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The process in which a low frequency signal is superimposed on a high frequency wave, which acts as a carrier wave, is called modulation.
Two types of modulation:
(i) Amplitude Modulation (AM)
(ii) Frequency Modulation (FM)
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Modulation is the superimposition of a low frequency signal over a high frequency signal.
(i) Amplitude modulation
(ii) Frequency modulation
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