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 4.9 5 10 995 4.9 5 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Voltage with constant frequency, phase or amplitude Resultant wave Speech voltage to be transmitted Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Resultant wave Speech voltage to be transmitted Voltage for which frequency, phase or amplitude is varied 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
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Almost equally costly None of these Costly Cheaper Almost equally costly None of these Costly Cheaper 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 8 1 16 15 8 1 16 15 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams None of these Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams None of these Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP
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