Communication Systems Skip distance depends on time of day and angle of incidence. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To regulate oscillator I/P voltage To prevent overmodulation To increase bandwidth To reduce bandwidth To regulate oscillator I/P voltage To prevent overmodulation To increase bandwidth To reduce bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system Quantising noise can be reduced by decreasing the number of standard levels Suffers from the disadvantage of its incompatibly with TDM Large bandwidth is required Quantising noise can be overcome by companding Quantising noise can be reduced by decreasing the number of standard levels Suffers from the disadvantage of its incompatibly with TDM Large bandwidth is required Quantising noise can be overcome by companding ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 70 kHz 80 kHz 65 kHz 75 kHz 70 kHz 80 kHz 65 kHz 75 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PSK PCM DM All PSK PCM DM All ANSWER DOWNLOAD EXAMIANS APP
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