Problem 1:The message signal as below is used to angle modulate a carrier c(t) = 100cos4000лt.(a) (5pts) Determine the peak-frequency deviation with k=2 using FM.(b) (5pts) Determine the peak-phase deviation with k₂ =1 using PM.(c) (10pts) If k=k=5, determine the maximum instantaneous frequency in FM and PM respectively.(d) (10pts) Determine the phase (t) of the FM modulated signal with k₂ =2.m(t)30-3246

i have solved all the parts.AM=2 from graph rest parts i have calculatedExplanation:

Answered: Problem 1: The message signal as below…

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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Q7. Figure Q7(a) shows the spectrum of a frequency modulated waveform with a sinusoidal modulation. 12 4.8 5.0 5.2 5.4 5.6 5.8 6.0 Frequency/MHz Figure Q7: (a) Spectrum of a frequency modulated waveform with a sinusoidal modulation. (a) Is this modulated waveform described as narrowband or as wideband? (b) What is the value of the carrier frequency? (c) What is the value of the modulation frequency? (d) Determine the value of the peak frequency deviation. Plots of Bessel functions of the first kind are provided below in Figure Q7(b) to assist you. (e) Estimate the fraction of the total signal power at the carrier frequency. (f) Detection of such a frequency modulated signal is usually accomplished with the use of a discriminator. Describe the function of a discriminator. (g) What is the equivalent AM modulation index obtained if this signal in Figure Q7(a) is demodulated with a high-pass RC filter discriminator? J„(x) 1.0 0.8 0.6 0.4 0.2 -0.2 -0.4 Figure Q7: (b) Bessel functions of the…
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In PM, as the amplitude of the modulating signal increases, the frequency deviation will ___________. a. be infinite b. increase c. decrease d. be constant
Q1-The message signal m(t) into a FM modulator with the parameter kf=25 is shown in the following figure. a) Express the FM signal in time domain.b) Calculate and plot the frequency deviation in Hz.c) Calculate and plot the phase deviation in radians.
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Question 3 a) For a single-frequency sine wave modulating signal of 3 kHz with a carrier frequency of 36 MHz, what is the spacing between sidebands? b) A carrier of 49 MHz is frequency-modulated by a 1.5-kHz square wave. The modulation index is 0.25. Sketch the spectrum of the resulting signal. (Assume only harmonics less than the sixth are passed by the system.)
In PM, as the frequency of the modulating signal decreases, the frequency deviation will ___________. a. increase b. be finite c. be constant d. decrease
The message signal m(t) into a FM modulator with the parameter kf=25 is shown in the following figure.a) Express the FM signal in time domain.b) Calculate and plot the frequency deviation in Hz.c) Calculate and plot the phase deviation in radians.
Problem 5. A carrier wave of frequency 20 MHz is frequency-modulated by a sine-wave of amplitude 2 volts and frequency 4 kHz. The frequency sensitivity of the modulator is 10 kHz per volt. a) Determine the approximate bandwidth of the FM wave using Carson's rule. b) Repeat part (a) assuming that the amplitude of the modulating wave is doubled. c) Repeat part (a) assuming that the modulation frequency is doubled.
4) Listen A sinewave voltage is defined by an effective voltage of 2.82Vrms. Calculation of the amplitude Vpk is performed: By multiplying Vrms by 2/Pi (=0.637). By dividing Vrms by 1.41 (square root of 2). By multiplying Vrms by 1.41 (square root of 2). By dividing Vrms by 2/Pi (=0.637). Calculation cannot be done since we do not know the frequency of the signal. O None of these statements are true. prt sc 144
Identify two ways in which noise affects an FM signal. (Check all that apply.) Noise introduces amplitude variations in an otherwise constant amplitude signal. Noise introduces frequency variations in an otherwise constant frequency signal. Noise causes amplitude shift and hence phase shift. Noise causes frequency shift and hence phase shift.
Modify this circuit to extend the upper frequency limit to greater than 15 MHz. You may change the topology (i.e. configuration), but not the power supply voltage or collector bias current. The circuit voltage gain must be 46dB +/- 1 dB. Provide simulation results to show AC frequency responses of both circuits on the same plot, and annotate the 3dB upper frequency limit on both traces. Use typical ẞ values from the data sheet for the simulation. You may assume that 1% resistors are available in values below 100. The circuit must adhere to Standard Bias techniques. V4 Rser=0 SINE(0 0.02 10k) AC 1 VCC ୯ V2 +15V Cin1 1μ -VCC VCC R4 Rc1 147k 7k Q3 2N3904 R7 R6 9.09 20.5k Ce1 Re1 1.00k 10p Out

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