Communication Systems Which of the following is used to generate PDM? JK flip-flop Monostable multi-vibrator Free running multi-vibrator Schmitt trigger JK flip-flop Monostable multi-vibrator Free running multi-vibrator Schmitt trigger ANSWER DOWNLOAD EXAMIANS APP
Communication Systems It is found that a ship to ship communication suffers from fading. This can be avoided by using Frequency diversity Directional antenna Space diversity Broad band antenna Frequency diversity Directional antenna Space diversity Broad band antenna ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Under ordinary circumstances, impulse noise can be reduced in Both AM and FM FM only AM only None of these Both AM and FM FM only AM only None of these 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 Large bandwidth is required High modulating power is needed High output power is needed Noise is very high for high frequency Large bandwidth is required High modulating power is needed ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals Reduces the amplitude of signals None of these Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals Reduces the amplitude of signals None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PCM DM PSK All PCM DM PSK All ANSWER DOWNLOAD EXAMIANS APP
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