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(c) A carrier signal with 2.8 V at 400 kHz is amplitude modulated with a sinusoidal signal. Calculate the amplitude of the message signal given that the modulation index was 65%. ii. Calculate the frequency of the message signal given that the upper-sideband and lower-sideband are set at 450 kHz and 350 kHz, respectively. iii. Sketch the amplitude modulated signal waveform and highlight the instantaneous voltage at t= 18 us.

(c) A carrier signal with 2.8 V at 400 kHz is amplitude modulated with a sinusoidal signal. Calculate the amplitude of the message signal given that the modulation index was 65%. ii. Calculate the frequency of the message signal given that the upper-sideband and lower-sideband are set at 450 kHz and 350 kHz, respectively. iii. Sketch the amplitude modulated signal waveform and highlight the instantaneous voltage at t= 18 us.

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
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Question 3 C part Solve C part (i,ii,iii) All parts of C plz and take a thumb up plz
Question 3 (a) A television receiver's folded dipole antenna has an impedance of 600 . If a RG-6 coaxial (75 22) coaxial cable is used, calculate the ratio required to match the cable and the antenna. (b) Figure Q3. (b) shows a beam antenna consisting of a dipole, a reflector, and a director. Design the beam antenna given that it is cut for a frequency of 200 MHz and assuming a velocity coefficient of 0.85. The length of the reflector is 5% more than the length of the dipole and the length of the director is 5% less than the length of the dipole. 0.15 Figure Q3(b) (c) A carrier signal with 2.8 V at 400 kHz is amplitude modulated with a sinusoidal signal. k Calculate the amplitude of the message signal given that the modulation index was 65%. ii. Calculate the frequency of the message signal given that the upper-sideband and lower-sideband are set at 450 kHz and 350 kHz, respectively. signal waveform and highlight the iii. Sketch the amplitude modulated instantaneous voltage at t= 18 us.
Transcribed Image Text:Question 3 (a) A television receiver's folded dipole antenna has an impedance of 600 . If a RG-6 coaxial (75 22) coaxial cable is used, calculate the ratio required to match the cable and the antenna. (b) Figure Q3. (b) shows a beam antenna consisting of a dipole, a reflector, and a director. Design the beam antenna given that it is cut for a frequency of 200 MHz and assuming a velocity coefficient of 0.85. The length of the reflector is 5% more than the length of the dipole and the length of the director is 5% less than the length of the dipole. 0.15 Figure Q3(b) (c) A carrier signal with 2.8 V at 400 kHz is amplitude modulated with a sinusoidal signal. k Calculate the amplitude of the message signal given that the modulation index was 65%. ii. Calculate the frequency of the message signal given that the upper-sideband and lower-sideband are set at 450 kHz and 350 kHz, respectively. signal waveform and highlight the iii. Sketch the amplitude modulated instantaneous voltage at t= 18 us.
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