. Q5: The output signal from an AM modulator is:s(t) = 5 cos(1800nt) + 20 cos(2000лt) + 5cos (2200nt)Determine the modulation index and the ratio of the power in the sidebands to the powerin the carrier. Draw the modulated signal. Q4: Assume that a voice channel occupies a bandwidth of 5 KHz. We need to combine fourvoice channels into a link with a bandwidth of 20 KHz, from 40 to 60 KHz. Show theconfiguration using the frequency domain without the use of guard bands.

Answered: Image /qna-images/answer/bd2c0369-a911-49ff-9b52-5d46a942de1f.jpg

Q5: The output signal from an AM modulator is: s(t) = 5 cos(1800nt) + 20 cos(2000лt) + 5cos (2200nt) Determine the modulation index and the ratio of the power in the sidebands to the power in the carrier. Draw the modulated signal.

Q5: The output signal from an AM modulator is: s(t) = 5 cos(1800nt) + 20 cos(2000лt) + 5cos (2200nt) Determine the modulation index and the ratio of the power in the sidebands to the power in the carrier. Draw the modulated signal.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

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 signal with variations of the video or the audio signal. This is called Amplitude Modulaton. In this modulation information of message is carried in amplitude of carrier signal.

Question

Q5: The output signal from an AM modulator is:
s(t) = 5 cos(1800nt) + 20 cos(2000лt) + 5cos (2200nt)
Determine the modulation index and the ratio of the power in the sidebands to the power
in the carrier. Draw the modulated signal.

Q4: Assume that a voice channel occupies a bandwidth of 5 KHz. We need to combine four
voice channels into a link with a bandwidth of 20 KHz, from 40 to 60 KHz. Show the
configuration using the frequency domain without the use of guard bands.

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