Communication Systems Which of the following is used to generate PDM? Monostable multi-vibrator Free running multi-vibrator Schmitt trigger JK flip-flop Monostable multi-vibrator Free running multi-vibrator Schmitt trigger JK flip-flop 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 Uncorrelated Orthogonal Statistically independent Correlated Uncorrelated Orthogonal Statistically independent Correlated ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by The wavelength transmitted through it None of these The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects The wavelength transmitted through it None of these The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation at right angles is zero The radiation at right angles is maximum The radiation is zero in all directions The radiation is maximum in all directions The radiation at right angles is zero The radiation at right angles is maximum The radiation is zero in all directions The radiation is maximum in all directions ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. True False True False ANSWER DOWNLOAD EXAMIANS APP
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