Communication Systems VSB modulation is preferred in TV because It results in better reception None of these It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies It results in better reception None of these It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Resultant wave Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied Resultant wave Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM Quantising noise can be reduced by decreasing the number of standard levels Quantising noise can be overcome by companding Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM Quantising noise can be reduced by decreasing the number of standard levels Quantising noise can be overcome by companding ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Differential PCM PCM Delta modulation PWM Differential PCM PCM Delta modulation PWM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 1280 kHz 10 kHz 35 kHz 70 kHz 1280 kHz 10 kHz 35 kHz 70 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 3 1 -3 2 3 1 -3 2 ANSWER DOWNLOAD EXAMIANS APP
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