A sinusoidally modulated ordinary AM waveform is shown in figure(i) Determine modulation index.10-5-10

Modulation is process by which some properties of carrier signal is varied according to modulating…

Answered: A sinusoidally modulated ordinary AM…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

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Figure (1) shows the block diagram of a wideband frequency modulator using the indirect method. This modulator is used to transmit audio signals containing frequencies in the range of 100 Hz to 15 kHz. The narrowband is supplied with a carrier of frequency fl-0.1 MHz by crystal- controlled oscillator also ß-0.2, a second crystal- controlled oscillator supplied a sinusoidal wave of frequency 9.5 MHz to the mixer. The system Carrier frequency at the transmitter output, fc-100MHz Minimum frequency deviation, Af-75, find nl and n2? f(t) NBFM Freq. Multiplier 1 Oscillator1 Fig. (1) Mixer Oscillator2 Freq. Multiplier 2 frm(t) n1=72, n2=47 O n1=73, n2-48 O n1=75, n2=50 n1=77, n2=52 O n1=76, n2=51 O
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A sinusoidally modulated ordinary AM waveform is shown in figur (i) Determine modulation index. 10 01 -10