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(a) A carrier and a modulating signals are shown in Figure 2. Sketch and label the modulated output signal in time domain for: i. the Frequency Modulation (FM) ii. the Phase Modulation (PM). Carrier signal Modulating signal Figure 2 (b) The FM and PM modulators parameters are shown in Table 1. Table 1 FM modulator Deviation sensitivity 6 kHz/v Carrier frequency = 400 kHz Modulating signal = sin (2n 4 kr) PM modulator Deviation sensitivity = 1.6 rad/v Carrier frequency = 300 kHz Modulating signal = 1.25 sin (2n 5 kr) i. Calculate the modulation indexes for both modulators. ii. Sketch and label the frequency spectrum for both modulators. 劃!

(a) A carrier and a modulating signals are shown in Figure 2. Sketch and label the modulated output signal in time domain for: i. the Frequency Modulation (FM) ii. the Phase Modulation (PM). Carrier signal Modulating signal Figure 2 (b) The FM and PM modulators parameters are shown in Table 1. Table 1 FM modulator Deviation sensitivity 6 kHz/v Carrier frequency = 400 kHz Modulating signal = sin (2n 4 kr) PM modulator Deviation sensitivity = 1.6 rad/v Carrier frequency = 300 kHz Modulating signal = 1.25 sin (2n 5 kr) i. Calculate the modulation indexes for both modulators. ii. Sketch and label the frequency spectrum for both modulators. 劃!

Introductory Circuit Analysis (13th Edition)
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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Question 4 (a) A carrier and a modulating signals are shown in Figure 2. Sketch and label the modulated output signal in time domain for: i. the Frequency Modulation (FM) i. the Phase Modulation (PM). Carrier signal Modulating signal Figure 2 (b) The FM and PM modulators parameters are shown in Table 1. Table 1 FM modulator Deviation sensitivity 6 kHz/v Carrier frequency = 400 kHz Modulating signal = sin (2n 4 kr) PM modulator Deviation sensitivity 1.6 rad/v Carrier frequency = 300 kHz Modulating signal = 1.25 sin (2n 5 kr) i. Calculate the modulation indexes for both modulators. i. Sketch and label the frequency spectrum for both modulators.
Transcribed Image Text:Question 4 (a) A carrier and a modulating signals are shown in Figure 2. Sketch and label the modulated output signal in time domain for: i. the Frequency Modulation (FM) i. the Phase Modulation (PM). Carrier signal Modulating signal Figure 2 (b) The FM and PM modulators parameters are shown in Table 1. Table 1 FM modulator Deviation sensitivity 6 kHz/v Carrier frequency = 400 kHz Modulating signal = sin (2n 4 kr) PM modulator Deviation sensitivity 1.6 rad/v Carrier frequency = 300 kHz Modulating signal = 1.25 sin (2n 5 kr) i. Calculate the modulation indexes for both modulators. i. Sketch and label the frequency spectrum for both modulators.
(c) Given an FM signal and a PM signal applied to a 50 2 antenna are as follows: • VeM(t) = 200 sin (6 x 10 t + 1.5 sin 7 x 10°t) (V) • VPM(t) = 400 sin (5 x 10°t + 3 sin 9 x 10 t) (V) Determine: i. the modulation indexes for both FM and PM signals i. the carrier frequencies for both FM and PM signals ii. the bandwidth by Carson's Rule for both FM and PM signals.
Transcribed Image Text:(c) Given an FM signal and a PM signal applied to a 50 2 antenna are as follows: • VeM(t) = 200 sin (6 x 10 t + 1.5 sin 7 x 10°t) (V) • VPM(t) = 400 sin (5 x 10°t + 3 sin 9 x 10 t) (V) Determine: i. the modulation indexes for both FM and PM signals i. the carrier frequencies for both FM and PM signals ii. the bandwidth by Carson's Rule for both FM and PM signals.
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