Communication Systems Which of the following is used to generate PDM? JK flip-flop Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop Free running multi-vibrator Monostable multi-vibrator Schmitt trigger ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 100 bps Upto 600 bps Upto 250 bps Upto 400 bps Upto 100 bps Upto 600 bps Upto 250 bps Upto 400 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 1000 ohm 100 ohm 500 ohm 300 ohm 1000 ohm 100 ohm 500 ohm 300 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 16 8 1 15 16 8 1 15 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In practical commercial FM system, channel bandwidth is 100 kHz 88 MHz 108 MHz 150 kHz 100 kHz 88 MHz 108 MHz 150 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to 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 Produce balanced modulation of a carrier wave ANSWER DOWNLOAD EXAMIANS APP
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