Communication Systems Full duplex operation permits transmission in both directions at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna None of these Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is Two tone modulation FSK Single tone modulation PCM Two tone modulation FSK Single tone modulation PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Speech voltage to be transmitted Resultant wave Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude Speech voltage to be transmitted Resultant wave Voltage for which frequency, phase or amplitude is varied Voltage with constant frequency, phase or amplitude ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Vertical blanking Serrations Horizontal retrace Horizontal blanking Vertical blanking Serrations Horizontal retrace Horizontal blanking ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 35 kHz 70 kHz 1280 kHz 10 kHz 35 kHz 70 kHz 1280 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
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