(a) Prove that when a carrier is sinusoidally amplitude-modulated by a signal of lowerfrequency, the resultant wave may be resolved into the carrier and 2-sidebandfrequencies.(b) A carrierwave with amplitude of 50V and a frequency of 3MHzis AmplitudeModulated by a 10 KHz sinusoidal signal with amplitude of 8V.Sketch the Double Side Band Full Carrier envelope.Sketch the frequency spectrum, indicating the frequencies and mmsamplitudes of the various components.Determining the power of the AM wave, if the wave is transmitted via anantenna which has a resistance of 2002.(c) Draw a well labeled block diagram of an electronic communications system.(11)(ii)

According to the question, (a) Prove that when a carrier is sinusoidally amplitude-modulated by a…

(a) Prove that when a carrier is sinusoidally amplitude-modulated by a signal of lower frequency, the resultant wave may be resolved into the carrier and 2-sideband frequencies. (b) A carrierwave with amplitude of 50V and a frequency of 3MHz is Amplitude Modulated by a 10 KHz sinusoidal signal with amplitude of 8V. (1) Sketch the Double Side Band Full Carrier envelope. Sketch the frequency spectrum, indicating the frequencies and rms amplitudes of the various components. (i) Determining the power of the AM wave, if the wave is transmitted via an antenna which has a resistance of 2002. (c) Draw a well labeled block diagram of an electronic communications system.

(a) Prove that when a carrier is sinusoidally amplitude-modulated by a signal of lower frequency, the resultant wave may be resolved into the carrier and 2-sideband frequencies. (b) A carrierwave with amplitude of 50V and a frequency of 3MHz is Amplitude Modulated by a 10 KHz sinusoidal signal with amplitude of 8V. (1) Sketch the Double Side Band Full Carrier envelope. Sketch the frequency spectrum, indicating the frequencies and rms amplitudes of the various components. (i) Determining the power of the AM wave, if the wave is transmitted via an antenna which has a resistance of 2002. (c) Draw a well labeled block diagram of an electronic communications system.

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

Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.

Question

(a) Prove that when a carrier is sinusoidally amplitude-modulated by a signal of lower
frequency, the resultant wave may be resolved into the carrier and 2-sideband
frequencies.
(b) A carrierwave with amplitude of 50V and a frequency of 3MHzis Amplitude
Modulated by a 10 KHz sinusoidal signal with amplitude of 8V.
Sketch the Double Side Band Full Carrier envelope.
Sketch the frequency spectrum, indicating the frequencies and mms
amplitudes of the various components.
Determining the power of the AM wave, if the wave is transmitted via an
antenna which has a resistance of 2002.
(c) Draw a well labeled block diagram of an electronic communications system.
(11)
(ii)

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