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Question

The process of regaining of information from carrier wave at the receiver is called :

A
Modulation
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B
Transmission
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C
Propagation
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D
Demodulation
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Solution

The correct option is A Demodulation
Demodulation is extracting the original information-bearing signal from a modulated carrier wave. A demodulator is an electronic circuit that is used to recover the information content from the modulated carrier wave.

Many things can act as a demodulator, if they pass the waves on non-linearly. For example, near a powerful radio station, it has been known for the metal sides of a van to demodulate the radio signal as sound

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