Communication Systems Which one of the following is analog? PCM Delta modulation PWM Differential PCM PCM Delta modulation PWM Differential PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PCM All PSK DM PCM All PSK DM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Laser beam for both recording and playback None of these Video head for recording and laser beam for playback Laser beam for recording and video head for playback Laser beam for both recording and playback None of these Video head for recording and laser beam for playback Laser beam for recording and video head for playback 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 1 8 16 15 1 8 16 15 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 Orthogonal Statistically independent Uncorrelated Correlated Orthogonal Statistically independent Uncorrelated Correlated ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 10 kHz 3 kHz 1 kHz 50 kHz 10 kHz 3 kHz 1 kHz 50 kHz ANSWER DOWNLOAD EXAMIANS APP
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