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6. For an FM modulator with modulation index m = 2, modulating signal v (1) =V, sin(2x2000t), and an unmodulated carrier v. (t) =8sin(27800000t), a. Determine the number of sets of significant sidebands. 2 b. Determine their amplitudes. Draw the frequency spectrum showing the relative amplitudes of the side frequencies. c.

6. For an FM modulator with modulation index m = 2, modulating signal v (1) =V, sin(2x2000t), and an unmodulated carrier v. (t) =8sin(27800000t), a. Determine the number of sets of significant sidebands. 2 b. Determine their amplitudes. Draw the frequency spectrum showing the relative amplitudes of the side frequencies. c.

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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6. For an FM modulator with modulation index m = 2, modulating signal v, (t) = Vm sin (2x2000t), and an unmodulated carrier v.(t)=8 sin(27800000r), a. Determine the number of sets of significant sidebands. 2 b. Determine their amplitudes. c. Draw the frequency spectrum showing the relative amplitudes of the side frequencies. It is given that Bessel coefficient corresponding to carrier component J(2) equals 0.22. Moreover, a side frequency is not considered significant unless it has amplitude equal to or greater than 1 % of the unmodulated carrier amplitude. Abbreviations: QPSK: Quaternary Phase Shift Keying BPSK: Binary Phase Shift Keying LED: Light Emitting Diode AM: Amplitude Modulation FM: Frequency Modulation
Transcribed Image Text:6. For an FM modulator with modulation index m = 2, modulating signal v, (t) = Vm sin (2x2000t), and an unmodulated carrier v.(t)=8 sin(27800000r), a. Determine the number of sets of significant sidebands. 2 b. Determine their amplitudes. c. Draw the frequency spectrum showing the relative amplitudes of the side frequencies. It is given that Bessel coefficient corresponding to carrier component J(2) equals 0.22. Moreover, a side frequency is not considered significant unless it has amplitude equal to or greater than 1 % of the unmodulated carrier amplitude. Abbreviations: QPSK: Quaternary Phase Shift Keying BPSK: Binary Phase Shift Keying LED: Light Emitting Diode AM: Amplitude Modulation FM: Frequency Modulation
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