Q2: A given AM (DSB - LC) transmitter develops an unmodulated power output of 1 kW. Across 500 resistive load. When a sinusoidal test tone with a peak amplitude of 5v is applied to the input of the modulator, it is found that the spectral line for each sideband in the magnitude spectrum-for the output is 40% of the carrier line. Determine the following quantities in the output signal: a-The modulation index. Am - Sv b-The peak amplitude of the lower sideband. c-The ratio of total sideband power to carrier power. d-The total output power. e-The total average power in the output if the peak amplitude of the modulation sinusoid is reduced to 4 volt.
Q2: A given AM (DSB - LC) transmitter develops an unmodulated power output of 1 kW. Across 500 resistive load. When a sinusoidal test tone with a peak amplitude of 5v is applied to the input of the modulator, it is found that the spectral line for each sideband in the magnitude spectrum-for the output is 40% of the carrier line. Determine the following quantities in the output signal: a-The modulation index. Am - Sv b-The peak amplitude of the lower sideband. c-The ratio of total sideband power to carrier power. d-The total output power. e-The total average power in the output if the peak amplitude of the modulation sinusoid is reduced to 4 volt.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:Q2: A given AM (DSB - LC) transmitter develops an unmodulated power output
of 1 kW. Across 500 resistive load. When a sinusoidal test tone with a peak
amplitude of 5v is applied to the input of the modulator, it is found that the
spectral line for each sideband in the magnitude spectrum-for the output is 40%
of the carrier line. Determine the following quantities in the output signal:
a-The modulation index.
Am - Sv
b-The peak amplitude of the lower sideband.
c-The ratio of total sideband power to carrier power.
d-The total output power.
e-The total average power in the output if the peak amplitude of the modulation
sinusoid is reduced to 4 volt.
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