Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is Improved efficiency High power output per transistor The lower modulating power requirement Better linearity Improved efficiency High power output per transistor The lower modulating power requirement Better linearity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent excessive grid current Prevent tuned circuit damping Increase the bandwidth Prevent over modulation Prevent excessive grid current Prevent tuned circuit damping Increase the bandwidth Prevent over modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In EM waves, polarization Is due to transverse nature of waves Is caused by reflection Results from longitudinal nature of waves Is always vertical in an isotropic medium Is due to transverse nature of waves Is caused by reflection Results from longitudinal nature of waves Is always vertical in an isotropic medium ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Either A or B Half duplex arrangement Neither A nor B Duplex arrangement Either A or B Half duplex arrangement Neither A nor B Duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half None of these It results in better reception It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half None of these It results in better reception ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by Good attenuation characteristics Filter method Phase cancellation method All of these Good attenuation characteristics Filter method Phase cancellation method All of these ANSWER DOWNLOAD EXAMIANS APP
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