Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Medium frequency Low frequency High frequency Very high frequency Medium frequency Low frequency High frequency Very high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter 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 Eliminates any change in amplitude of received FM signals ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PCM PSK DM All PCM PSK DM All ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation at right angles is zero The radiation is maximum in all directions The radiation is zero in all directions The radiation at right angles is maximum The radiation at right angles is zero The radiation is maximum in all directions The radiation is zero in all directions The radiation at right angles is maximum ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 1 0.8 0.5 1 0.8 0.5 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Anticlockwise Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored ANSWER DOWNLOAD EXAMIANS APP
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