Analyse the amplitude modulated wave represented by the expression: v = 5 (1 + 0.6 cos 6280 t) sin 211 x 10° t volts. Determine: i. signal frequency; ii. carrier frequency; modulation factor, m; iii.

Analyse the amplitude modulated wave represented by the expression: v = 5 (1 + 0.6 cos 6280 t) sin 211 x 10° t volts. Determine: i. signal frequency; ii. carrier frequency; modulation factor, m; iii.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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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

Analyse the amplitude modulated wave represented by the expression: v = 5 (1 + 0.6 cos 6280 t) sin
211 x 10° t volts. Determine:
i.
signal frequency;
ii. carrier frequency;
iii.
modulation factor, m;

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