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2. In PM system, A. the instantaneous phase deviation is directly proportional to the phase of the modulation signal and unaffected by its frequency B. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its phase C. the instantaneous phase deviation is directly proportional to the of the frequency modulation signal and unaffected by its amplitude D. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its frequency 3. Why can a limiter circuit be used to cut off the peaks and valleys of an FM or PM signal? a. The message signal is contained in the frequency and phase deviations of the carrier, not in the amplitude variations. b. The message signal causes only small changes in the amplitude of the carrier. c. FM or PM signals do not require much transmission power. d. All of the above

2. In PM system, A. the instantaneous phase deviation is directly proportional to the phase of the modulation signal and unaffected by its frequency B. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its phase C. the instantaneous phase deviation is directly proportional to the of the frequency modulation signal and unaffected by its amplitude D. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its frequency 3. Why can a limiter circuit be used to cut off the peaks and valleys of an FM or PM signal? a. The message signal is contained in the frequency and phase deviations of the carrier, not in the amplitude variations. b. The message signal causes only small changes in the amplitude of the carrier. c. FM or PM signals do not require much transmission power. d. All of the above

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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1. An FM carrier signal with a MJ of 4 contains a 3 kHz message signal. Use Table 6-2 to determine the number of significant sideband pairs, and then calculate the bandwidth of the FM carrier. a. 12 kHz b. 6 kHz c. 42 kHz d. 21 kHz
Transcribed Image Text:1. An FM carrier signal with a MJ of 4 contains a 3 kHz message signal. Use Table 6-2 to determine the number of significant sideband pairs, and then calculate the bandwidth of the FM carrier. a. 12 kHz b. 6 kHz c. 42 kHz d. 21 kHz
2. In PM system, A. the instantaneous phase deviation is directly proportional to the phase of the modulation signal and unaffected by its frequency B. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its phase C. the instantaneous phase deviation is directly proportional to the of the frequency modulation signal and unaffected by its amplitude D. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its frequency 3. Why can a limiter circuit be used to cut off the peaks and valleys of an FM or PM signal? a. The message signal is contained in the frequency and phase deviations of the carrier, not in the amplitude variations. b. The message signal causes only small changes in the amplitude of the carrier. c. FM or PM signals do not require much transmission power. d. All of the above
Transcribed Image Text:2. In PM system, A. the instantaneous phase deviation is directly proportional to the phase of the modulation signal and unaffected by its frequency B. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its phase C. the instantaneous phase deviation is directly proportional to the of the frequency modulation signal and unaffected by its amplitude D. the instantaneous phase deviation is directly proportional to the amplitude of the modulation signal and unaffected by its frequency 3. Why can a limiter circuit be used to cut off the peaks and valleys of an FM or PM signal? a. The message signal is contained in the frequency and phase deviations of the carrier, not in the amplitude variations. b. The message signal causes only small changes in the amplitude of the carrier. c. FM or PM signals do not require much transmission power. d. All of the above
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