A spectrum analyzer with an input impedance of 205 measure the power spectrum of an AM signal at the preamplifier circuit. The AM signal has been modu sine wave. The effective carrier power, Pc, is 750m sideband, PusB and PLSB, is 120mW. Compute the follovw 1- The total effective power Pr. 2- The peak carrier voltage, Vc. 3- The modulation index, m, and the percent modul: 4- The modulation voltage,Vm. 5- The lower -and upper – sideband voltages, VISB a 6- Sketch the waveform that you would you see with a if it were placed in narallel with the snoo

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A spectrum analyzer with an input impedance of 200 is used to
measure the power spectrum of an AM signal at the output of a
preamplifier circuit. The AM signal has been modulated with a
sine wave. The effective carrier power, Pc, is 750mw, and each
sideband, PusB and PLSB, is 120mW. Compute the following:
1- The total effective power Pr.
2- The peak carrier voltage, Vc-
3- The modulation index, m, and the percent modulation index.
4- The modulation voltage,Vm.
5- The lower -and upper - sideband voltages, VLSB and VUB.
6- Sketch the waveform that you would you see with an oscilloscope
if it were placed in parallel with the spectrum analyzer.
Transcribed Image Text:A spectrum analyzer with an input impedance of 200 is used to measure the power spectrum of an AM signal at the output of a preamplifier circuit. The AM signal has been modulated with a sine wave. The effective carrier power, Pc, is 750mw, and each sideband, PusB and PLSB, is 120mW. Compute the following: 1- The total effective power Pr. 2- The peak carrier voltage, Vc- 3- The modulation index, m, and the percent modulation index. 4- The modulation voltage,Vm. 5- The lower -and upper - sideband voltages, VLSB and VUB. 6- Sketch the waveform that you would you see with an oscilloscope if it were placed in parallel with the spectrum analyzer.
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Pulse Analog Modulation (Pulse Amplitude Modulation [PAM], Pulse Width Modulation [PWM], Pulse Position Modulation [PPM])
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