Communication Systems The maximum power output of a standard A earth station over the total band allocated to satellite communication is about 20 kW 50 kW 0.5 kW 8 kW 20 kW 50 kW 0.5 kW 8 kW ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Better linearity The lower modulating power requirement High power output per transistor Improved efficiency Better linearity The lower modulating power requirement High power output per transistor Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Low pass filter Band stop filter High pass filter Band pass filter Low pass filter Band stop filter High pass filter Band pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be Statistically independent Uncorrelated Correlated Orthogonal Statistically independent Uncorrelated Correlated Orthogonal 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 remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following does not cause losses in optical fibre cables? Impurities Stepped index operation Attenuation in glass Microbending Impurities Stepped index operation Attenuation in glass Microbending ANSWER DOWNLOAD EXAMIANS APP
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