Q2: A given AM (DSB – LC) transmitter develops an unmodulated power output of 1 kW. Across 502 resistive load. When a sinusoidal test tone with a peak amplitude of 5v is applied to the input of the...


Q2: A given AM (DSB – LC) transmitter develops an unmodulated power output<br>of 1 kW. Across 502 resistive load. When a sinusoidal test tone with a peak<br>amplitude of 5v is applied to the input of the modulator, it is found that the<br>spectral line for each sideband in the magnitude spectrum for the output is 40%<br>of the carrier line. Determine the following quantities in the output signal:<br>a-The modulation index.<br>b-The peak amplitude of the lower sideband.<br>c-The ratio of total sideband power to carrier power.<br>d-The total output power.<br>e-The total average power in thr output if the peak amplitude of the modulation<br>sinusoid is reduced to 4 volt.<br>

Extracted text: Q2: A given AM (DSB – LC) transmitter develops an unmodulated power output of 1 kW. Across 502 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. 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.

Jun 10, 2022
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