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InterviewSolution
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A sinusoidal carrier voltage of `80 "volts"` amplitude and `1MHz` frequency is amplitude modulated by a sinusoidal voltage of frequency `5 kHz` producing `50%` modulation. Calculate the amplitude and frequency of lower and upper side bands. |
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Answer» Amplitude of both `LSB` and `USB` are equal and given by `=(mE_(c))/(2)=(0.5xx80)/(2)=20"volts"` Now frequency of `LSB=f_(c)-f_(s)` `=(1000-5)kHz=995kHz` Frequency of `USB=f_(c)+f_(s)` `=(1000+5)kHz=1005kHz` |
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