Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Amplitude modulation
A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the s…
Question
*Why is AM used for broadcasting in the communication systems? A. Its use avoids receiver complexity B. It is more immune to other modulation systems C. It requires less transmitting power D. No noise disturbances *A carrier of peak voltage 15 V is used to transmit a message signal. If the modulation index is 70%, what is the peak voltage of the modulation ? A.25V B.10.5V C.11V D.30V
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Transcribed Image Text:*Why is AM used for broadcasting in the communication systems? A. Its use avoids receiver complexity B. It is more immune to other modulation systems C. It requires less transmitting power D. No noise disturbances *A carrier of peak voltage 15 V is used to transmit a message signal. If the modulation index is 70%, what is the peak voltage of the modulation ? A.25V B.10.5V C.11V D.30V
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