I need the answer as soon as possible 06: Suppose the carrier waveform illustrate below with assuming a group of 10information signals xi (1), i = 1,2,3, .. 10. cach signal has a band of 1 kHz. Considerall ten signals are multiplexed using the TDM technique after cach signal ismultiplied by the carrier illustrate below. What is the largest value of the time periodin milliseconds?27

Communication systems play a major role in connecting peoples, The transmitter is a device where…

Answered: 06: Suppose the carrier waveform…

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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2 (AM) A 10 V amplitude sinusoidal signal is used as a modulating signal to generate an AM signal with modulation index 0.8. What is the amplitude of the carrier? What is the power of the side bands? What is the efficiency of the modulated signal?
A 162-MHz carrier is deviated by 12 kHz by a 2-kHz modulating signal. The maximum deviation of an FM carrier with a 2.5-kHz signal is 4 kHz. Compute the bandwidth occupied by the signal, by using the conventional method and Carson’s rule. Sketch the spectrum of each signal, showing all significant sidebands and their exact amplitude.
H.W A) An amplitude modulated signal has a carrier frequency 10KHZ. The upper sideband is transmitted at 11KHZ. plot the frequency spectrum and determine the Bandwidth required for the AM signal? B) compute the Signal Energy
Determine the frequency deviation and carrier swing for a frequency modulated signal which has aresting frequency of 105.000 MHz and whose upper frequency is 105.007 MHz when modulated bya particular wave. Find the lowest frequency reached by the FM wave.
A 107.6 MHz carrier is frequency modulated by a 7kHz sine wave. The resultant FM signal hasfrequency deviation of 50 kHz.a. Find the carrier swing of the FM signal. b. Determine the highest and lowest frequencies attained by the modulated signal. c. What is the index of the FM wave?
(a) Determine the frequency deviation ∆f and the carrier swing for an FMsignal with a carrier frequency of 100 MHz and whose upper frequency swing is100.007 MHz when modulated by signal m(t).(b) Find the lowest frequency swing experienced by this FM signal.
Write the equation for the Power Spectral Density of the filtered signal ?
A power spectral density has a roughly Gaussian shape for which the mean is at 10000Hz and the standard deviation of the distribution is 100 Hz. Bearing in mind what we know about the Gaussian distribution, estimate the proportion of power that lies in the region that is in EXCESS of 10300Hz, if the TOTAL power in the signal is 10 Watts.
The SNRi of an FM transmitter is determined to be 24.093dBV. Solve for the peak frequency deviation caused by the noise if the transmitter sensitivity is determined to be 368.903Hz/V, and a modulating signal of 13.926V and the modulating index is kept at 4
An Amplitude Modulation (AM DSBFC) radio broadcasting station with its carrier frequency of 750 kHz is amplitude-modulated by a 4 kHz audio signal to produce an AM envelope. The maximum and minimum peaks voltages of the envelope are 180Vp and 70Vp respectively. The equivalent resistance of the transmitting antenna is 60 Ω. Determine: (i) The peak amplitudes of the audio, carrier sideband voltages and modulation index. (ii) Using the above results, write the complete AM mathematical representation to express the waveform, showing its carrier, lower sideband and upper sideband parameters. (iii) The power of the carrier signal, total sidebands power and the bandwidth of the modulated signal. Then sketch and label the power spectrum of the modulated ( i v ) If the transmission is changed to Single-Side Band Suppressed Carrier (SSBSC), calculate the percentage power saving in comparison to the original AM DSBFC
1. A 1500-kHz carrier and kHz intelligence signal are combined in a nonlin-ear device. List all the frequency components produced. *2. If a 1500-kHz radio wave is modulated by a 2-kHz sine-wave tone, what frequencies are contained in the modulated wave (the actual AM signal)? *3. If a carrier is amplitude-modulated, what causes the sideband frequencies? *4. What determines the bandwidth of emission for an AM transmission? *10. What are some of the possible results of overmodulation? *11. An unmodulated carrier is 300 V p-p. Calculate %m when its maximum p-p value reaches 400, 500, and 600 V. (33.3%, 66.7%, 100%) 12. If V and V as shown in Figure 8, determine %m. (53.85%) 13. Determine and from Problem 12. ( Vpk, Vpk)
A 93.2 MHz carrier is frequency modulated by a 5-KHz sine wave. The resultant FM signal has a frequency deviation of 40 KHz. (a) Find the carrier swing of the FM signal. (b) Determine the highest and lowest frequencies attained by the modulated signal. (c) What is the modulation index of the FM wave (d) Calculate the percent modulation? (e) Determine the bandwidth using approximation method.

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