Communication Systems Which of the following is a digital modulation technique? DM PCM All PSK DM PCM All PSK ANSWER DOWNLOAD EXAMIANS APP
Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Zero capacity Infinite capacity Small capacity None of these Zero capacity Infinite capacity Small capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals None of these Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals Amplifiers low frequency signals None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 65 kHz 75 kHz 80 kHz 70 kHz 65 kHz 75 kHz 80 kHz 70 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Either A or B Neither A nor B Duplex arrangement Half duplex arrangement Either A or B Neither A nor B Duplex arrangement Half duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Produce balanced modulation of a carrier wave Produce 100% modulation Limit noise picked by a receiver Suppress carrier signal in order to create a single-sideband or double sideband Produce balanced modulation of a carrier wave Produce 100% modulation Limit noise picked by a receiver Suppress carrier signal in order to create a single-sideband or double sideband ANSWER DOWNLOAD EXAMIANS APP
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