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 Commercial Frequency deviation of FM is 75 kHz 65 kHz 80 kHz 70 kHz 75 kHz 65 kHz 80 kHz 70 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses 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 Laser beam for both recording and playback None of these Video head for recording and laser beam for playback ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Speech voltage to be transmitted Resultant wave Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Speech voltage to be transmitted Resultant wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems To eliminate ghosts in the picture Connect a booster Use a longer transmission line Twist the transmission line Change the antenna orientation of location Connect a booster Use a longer transmission line Twist the transmission line Change the antenna orientation of location ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Linear devices Class C amplifiers Non-linear devices Harmonic devices Linear devices Class C amplifiers Non-linear devices Harmonic devices ANSWER DOWNLOAD EXAMIANS APP
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