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A message to be transmitted using AM is given by m(t) = 2cos(2πt) + 4sin(6nt) where the unit of time is milliseconds. It is to be sent using a carrier frequency of 600kHz. a. What is the message bandwidth? Sketch its magnitude spectrum, clearly specifying the units used on the axes. b. For a modulation index of 50%, write an explicit time-domain expression for the AM signal. c. Sketch the magnitude spectrum for the AM signal, clearly specifying the units used on the axes.

A message to be transmitted using AM is given by m(t) = 2cos(2πt) + 4sin(6nt) where the unit of time is milliseconds. It is to be sent using a carrier frequency of 600kHz. a. What is the message bandwidth? Sketch its magnitude spectrum, clearly specifying the units used on the axes. b. For a modulation index of 50%, write an explicit time-domain expression for the AM signal. c. Sketch the magnitude spectrum for the AM signal, clearly specifying the units used on the axes.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A message to be transmitted using AM is given by m(t) 2cos(2πt) + 4sin(6nt) where the unit of time is milliseconds. It is to be sent using a carrier frequency of 600kHz. a. What is the message bandwidth? Sketch its magnitude spectrum, clearly specifying the units used on the axes. b. For a modulation index of 50%, write an explicit time-domain expression for the AM signal. Sketch the magnitude spectrum for the AM signal, clearly specifying the units used on the axes. C.
Transcribed Image Text:A message to be transmitted using AM is given by m(t) 2cos(2πt) + 4sin(6nt) where the unit of time is milliseconds. It is to be sent using a carrier frequency of 600kHz. a. What is the message bandwidth? Sketch its magnitude spectrum, clearly specifying the units used on the axes. b. For a modulation index of 50%, write an explicit time-domain expression for the AM signal. Sketch the magnitude spectrum for the AM signal, clearly specifying the units used on the axes. C.
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