Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that High output power is needed Noise is very high for high frequency High modulating power is needed Large bandwidth is required High output power is needed Noise is very high for high frequency High modulating power is needed Large bandwidth is required ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth To regulate oscillator I/P voltage To reduce bandwidth To prevent overmodulation To increase bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 16 15 1 8 16 15 1 8 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be Statistically independent Orthogonal Uncorrelated Correlated Statistically independent Orthogonal Uncorrelated Correlated ANSWER DOWNLOAD EXAMIANS APP
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