/A given AM (DSB – LC) transmitter develops an unmodulated power output of 1 kW. Across 50Ω resistive load. When a sinusoidal test tone with a peak amplitude of 5? 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. 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 thr output if the peak amplitude of the modulation sinusoid is reduced to 4 volt.
/A given AM (DSB – LC) transmitter develops an unmodulated power output of 1 kW. Across 50Ω resistive load. When a sinusoidal test tone with a peak amplitude of 5? 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. 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 thr 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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q/A given AM (DSB – LC) transmitter develops an unmodulated power output
of 1 kW. Across 50Ω resistive load. When a sinusoidal test tone with a peak
amplitude of 5? 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.
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 thr output if the peak amplitude of the modulation
sinusoid is reduced to 4 volt.
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