Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
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Chapter 18.8, Problem 11PP
If a 2-MHz carrier is modulated by a 4-kHz intelligent signal, determine the frequencies of the three components of the AM signal that results.
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Question 3
a) For a single-frequency sine wave modulating signal of 3 kHz with a carrier frequency of 36
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A message signal has bandwidth of 1 kHz Hz to 21 kHz. It frequency modulates a 100 MHz carrier. The modulator's frequency deviation per volt is 20 kHz V-1 and the peak to peak signal voltage amplitude it can transmit is 20 V. Determine the frequency deviation as well as the bandwidth of the resultant FM signal.
Chapter 18 Solutions
Fundamentals of Electric Circuits
Ch. 18.2 - Prob. 1PPCh. 18.2 - Prob. 2PPCh. 18.2 - Prob. 3PPCh. 18.3 - Prob. 5PPCh. 18.3 - Prob. 6PPCh. 18.4 - Prob. 7PPCh. 18.4 - Prob. 8PPCh. 18.5 - (a) Calculate the total energy absorbed by a 1-...Ch. 18.5 - Prob. 10PPCh. 18.8 - If a 2-MHz carrier is modulated by a 4-kHz...
Ch. 18.8 - Prob. 12PPCh. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - The inverse Fourier transform of ej2+j is (a) e2t...Ch. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - A unit step current is applied through a 1-H...Ch. 18 - Prob. 10RQCh. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - Prob. 7PCh. 18 - Prob. 8PCh. 18 - Prob. 9PCh. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 14PCh. 18 - Prob. 15PCh. 18 - Prob. 16PCh. 18 - Prob. 17PCh. 18 - Given that F=Fft, prove the following results,...Ch. 18 - Prob. 19PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - Prob. 23PCh. 18 - Prob. 24PCh. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - Prob. 29PCh. 18 - For a linear system with input x(t) and output...Ch. 18 - Prob. 31PCh. 18 - Prob. 32PCh. 18 - Prob. 33PCh. 18 - Prob. 34PCh. 18 - Prob. 35PCh. 18 - Prob. 36PCh. 18 - Prob. 37PCh. 18 - Prob. 38PCh. 18 - Prob. 39PCh. 18 - Prob. 40PCh. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Prob. 43PCh. 18 - Prob. 44PCh. 18 - Prob. 45PCh. 18 - Prob. 46PCh. 18 - Prob. 47PCh. 18 - Prob. 49PCh. 18 - Prob. 51PCh. 18 - Prob. 52PCh. 18 - Prob. 53PCh. 18 - Prob. 54PCh. 18 - Prob. 55PCh. 18 - Prob. 56PCh. 18 - Prob. 57PCh. 18 - Prob. 58PCh. 18 - Prob. 59PCh. 18 - Prob. 60PCh. 18 - Prob. 61PCh. 18 - Prob. 62PCh. 18 - Prob. 63PCh. 18 - Prob. 64PCh. 18 - Prob. 65PCh. 18 - Prob. 66PCh. 18 - Given a signal g(t) = sinc(200 t), find the...Ch. 18 - Prob. 68CPCh. 18 - Prob. 69CP
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- Determine & explain the basic radar components for radar detection. pls illustrate with labels.arrow_forward3. An FM broadcast transmitter is modulated 50% by a 7-kHz test tone. When the frequency of the test tone is changed to 5 kHz and the percentage of modulation is unchanged, what is the transmitter frequency swing?arrow_forwardA 93 MHz carrier is frequency modulated by a 9 kHz sinewave, resulting in a frequency deviation of 53 kHz. Calculate the modulation index of the resulting FM signal (to 2 decimal places). Type your answer.arrow_forward
- B- A FM modulator is used to transmit a message with amplitude of 4 Volts and frequency of 20 Hz, the frequency deviation constant for the modulator is 25 Hz/V, and the carrier wave has amplitude 10 Volts and frequency 2000HZ. 1- What is the power of the FM modulated signal? Assume R=1Q 2- What is the approximate bandwidth of the FM modulated signal? 3- How would your answer to part (2) change if the amplitude of message is doubled? 4- How would your answer to part (2) change if the frequency of the carrier is doubled?arrow_forwardFM DEMODULATION Why is it necessary to recover the original information signal from the carrier?arrow_forwarda 2o MHz carrier is frequency modulated by a sinusoidal signal such that the peak frequency deviation is 100 kHz. Determine the modulation index and the approximate bandwidth of the Fm signal if the frequency of the modulation is i) 1 kHz. Ii) 50khz and 500khzarrow_forward
- I want to design a superheterodyne receiver with an IF frequency of 10MHZ to receive a frequency band of 20MHZ to 40MHZ. (a)Find the frequency range of the receiver local oscillator (b)Find the video frequency when the carrier frequency is 40 MHz (c)Briefly describe how the video channel of the video frequency mentioned in (b) can be reduced or eliminated.arrow_forwardHow does the bandwidth of an AM signal relate to the information signal?arrow_forwardExplore how "polarization mode dispersion" affects signal clarity in fiber-optic cables.arrow_forward
- 1-) In MR (Magnetic Resonance) Imaging Systems, explain the following concepts with figures. - Larmor frequency Spin echo sequence T1, T2 period TE, TR periodarrow_forward3. Describe the composite TV signal. 4. Explain the benefit(s) of polarization of the EM wave. Note: Please do not handwritten. Also, answer the two questions.arrow_forwardA 162-MHz carrier is deviated by 12 kHz by a 2-kHz modulating signal. What is the modulation index?arrow_forward
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