A device with input () and () is characterized by () = (). An FM signa – InterviewSolution

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1.	A device with input () and () is characterized by () = (). An FM signal with frequency deviation of 90 kHz and modulating signal bandwidth of 5 kHz is applied to this device. The bandwidth of the output signal is
Answer» If we square the signal, bandwidth will becomes double. B.W. for x(t) = 2(90 + 5) = 190 kHz for x2(t) = 2 x 190 380 kHz.

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