Question
Download Solution PDFWhat is the primary role of a modulator in a communication system?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe primary role of a modulator in a communication system is to superimpose the message signal onto the carrier wave.
Explanation:
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Modulation is the process by which a low-frequency message (or information) signal is combined with a high-frequency carrier wave.
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This process involves varying a characteristic of the carrier wave (such as its amplitude, frequency, or phase) in accordance with the variations of the message signal.
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The purpose of modulation is to facilitate efficient transmission of the message signal over long distances, allow for multiplexing of multiple signals, and improve noise immunity.
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