Communication Systems Circular polarization 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 Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 1280 kHz 70 kHz 10 kHz 35 kHz 1280 kHz 70 kHz 10 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Costly Cheaper None of these Almost equally costly Costly Cheaper None of these Almost equally costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands decreases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands decreases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a TV receiver antenna the length of reflector rod Is less than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is more than that of dipole Is less than that of dipole May be equal, more or less than that of dipole Is the same as that of dipole Is more than that of dipole ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 70.2 113 102.3 80.9 70.2 113 102.3 80.9 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS