Communication Systems VSB modulation is preferred in TV because It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half It results in better reception None of these It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half It results in better reception None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that High modulating power is needed High output power is needed Large bandwidth is required Noise is very high for high frequency High modulating power is needed High output power is needed Large bandwidth is required Noise is very high for high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Band stop filter Band pass filter Low pass filter High pass filter Band stop filter Band pass filter Low pass filter High pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is Two tone modulation Single tone modulation PCM FSK Two tone modulation Single tone modulation PCM FSK ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Under ordinary circumstances, impulse noise can be reduced in Both AM and FM AM only None of these FM only Both AM and FM AM only None of these FM only 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
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