Communication Systems The maximum power output of a standard A earth station over the total band allocated to satellite communication is about 8 kW 50 kW 0.5 kW 20 kW 8 kW 50 kW 0.5 kW 20 kW ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as High frequency Medium frequency Low frequency Very high frequency High frequency Medium frequency Low frequency Very high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? All PCM DM PSK All PCM DM PSK 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 The disadvantage of FM over AM is that High output power is needed High modulating power is needed Large bandwidth is required Noise is very high for high frequency High output power is needed High modulating power is needed Large bandwidth is required Noise is very high for high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation is maximum in all directions The radiation at right angles is maximum The radiation is zero in all directions The radiation at right angles is zero The radiation is maximum in all directions The radiation at right angles is maximum The radiation is zero in all directions The radiation at right angles is zero ANSWER DOWNLOAD EXAMIANS APP
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