Communication Systems Which of the following is a digital modulation technique? All PSK PCM DM All PSK PCM DM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 10 kHz 70 kHz 1280 kHz 35 kHz 10 kHz 70 kHz 1280 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna 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 When the length of antenna is a whole wavelength The radiation at right angles is maximum The radiation is maximum in all directions The radiation at right angles is zero The radiation is zero in all directions The radiation at right angles is maximum The radiation is maximum in all directions The radiation at right angles is zero The radiation is zero in all directions ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation ANSWER DOWNLOAD EXAMIANS APP
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