Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Small capacity Zero capacity None of these Infinite capacity Small capacity Zero capacity None of these Infinite capacity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The maximum power output of a standard A earth station over the total band allocated to satellite communication is about 0.5 kW 50 kW 8 kW 20 kW 0.5 kW 50 kW 8 kW 20 kW ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Class C amplifiers Linear devices Harmonic devices Non-linear devices Class C amplifiers Linear devices Harmonic devices Non-linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 600 bps Upto 250 bps Upto 100 bps Upto 400 bps Upto 600 bps Upto 250 bps Upto 100 bps Upto 400 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement Improved efficiency Better linearity High power output per transistor The lower modulating power requirement Improved efficiency Better linearity High power output per transistor ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave None of these Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP