Communication Systems A telephone channel requires a bandwidth of about 50 kHz 10 kHz 1 kHz 3 kHz 50 kHz 10 kHz 1 kHz 3 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Is useful in reducing depolarization effect on received wave None of these Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave None of these Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams 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
Communication Systems Commercial Frequency deviation of FM is 70 kHz 75 kHz 65 kHz 80 kHz 70 kHz 75 kHz 65 kHz 80 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It avoids phase distortion at low frequencies None of these It results in better reception It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies None of these It results in better reception It reduces the bandwidth requirement to half ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a TV receiver antenna the length of reflector rod Is less than that of dipole Is the same as that of dipole Is more than that of dipole May be equal, more or less than that of dipole Is less than that of dipole Is the same as that of dipole Is more than that of dipole May be equal, more or less than that of dipole ANSWER DOWNLOAD EXAMIANS APP
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