Communication Systems For telegraphy the most commonly used modulation system is Two tone modulation Single tone modulation PCM FSK Two tone modulation Single tone modulation PCM FSK ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Serrations Horizontal blanking Horizontal retrace Vertical blanking Serrations Horizontal blanking Horizontal retrace Vertical blanking ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because None of these It reduces the bandwidth requirement to half It results in better reception It avoids phase distortion at low frequencies None of these It reduces the bandwidth requirement to half It results in better reception It avoids phase distortion at low frequencies ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Schmitt trigger JK flip-flop Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop Free running multi-vibrator Monostable multi-vibrator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The maximum power output of a standard A earth station over the total band allocated to satellite communication is about 50 kW 0.5 kW 8 kW 20 kW 50 kW 0.5 kW 8 kW 20 kW ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system 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 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 ANSWER DOWNLOAD EXAMIANS APP
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