A modulation index, m is the ratio between the amplitudes of modulating signal and the carrier. An equation of Analog Modulation (AM) signal is given as: v(t) = E. (1 + m sin wmt) sin wet i) Write the mathematical equations for m based on above equation. ii) Sketch the waveforms for the following values of m listed below and describe the effect of m to each waveform. a. m = 0 b. m = 0,5 C. m = 1 d. m = 2

A modulation index, m is the ratio between the amplitudes of modulating signal and the carrier. An equation of Analog Modulation (AM) signal is given as: v(t) = E. (1 + m sin wmt) sin wet i) Write the mathematical equations for m based on above equation. ii) Sketch the waveforms for the following values of m listed below and describe the effect of m to each waveform. a. m = 0 b. m = 0,5 C. m = 1 d. m = 2

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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4. An FM signal has a deviation of 10 kHz and is modulated by a sine wave with a frequency of 5kHz. The carrier frequency is 150MHz and the signal has a total power of 12.5W, operating into an impedance of 500. a. What is the modulation index? b. How much power is present at the carrier frequency?
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Design (only the block diagram) an Armstrong indirectly FM modulator to generate an FM carrier with a carrier frequency of 98.1MHz and df (frequency deviation) =75kHz.A narrowband FM generator is available at a carrier frequency of 100 KHz and a (frequency deviation) df=10Hz.The stockroom has an oscillator with an adjustable frequency in the range of 10 to 11MHz.There are plenty of Frequency multipliers.
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