Communication Systems Which of the following is a digital modulation technique? PSK PCM All DM PSK PCM All DM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 10 995 5 4.9 10 995 5 4.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Clockwise or anticlockwise depending on frequency of data stored Anticlockwise Clockwise Mostly anticlockwise but some times clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise Clockwise Mostly anticlockwise but some times clockwise ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that High output power is needed Noise is very high for high frequency High modulating power is needed Large bandwidth is required High output power is needed Noise is very high for high frequency High modulating power is needed Large bandwidth is required ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 455 kHz 10.7 MHz 106 kHz 1.07 MHz 455 kHz 10.7 MHz 106 kHz 1.07 MHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. True False True False ANSWER DOWNLOAD EXAMIANS APP
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