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 Orthogonal Uncorrelated Statistically independent Correlated Orthogonal Uncorrelated Statistically independent Correlated ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Harmonic devices Non-linear devices Class C amplifiers Linear devices Harmonic devices Non-linear devices Class C amplifiers Linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a High pass filter Band stop filter Band pass filter Low pass filter High pass filter Band stop filter Band pass filter Low pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 1 -3 2 3 1 -3 2 3 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Infinite capacity Zero capacity None of these Small capacity Infinite capacity Zero capacity None of these Small capacity 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 increases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands increases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands decreases Amplitude of distant sidebands remains constant ANSWER DOWNLOAD EXAMIANS APP
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