Communication Systems For attenuation of high frequencies we should use Shunt capacitance Inductance Resistance Series capacitance Shunt capacitance Inductance Resistance Series capacitance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PSK PCM DM All PSK PCM DM All ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is High power output per transistor The lower modulating power requirement Improved efficiency Better linearity High power output per transistor The lower modulating power requirement Improved efficiency Better linearity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as High frequency Very high frequency Medium frequency Low frequency High frequency Very high frequency Medium frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of low level amplitude modulation system, the amplifiers following the modulated stage must be Linear devices Non-linear devices Harmonic devices Class C amplifiers Linear devices Non-linear devices Harmonic devices Class C amplifiers ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are 200 and 200 200 and 100.1 200 and 1.01 200 and 10.01 200 and 200 200 and 100.1 200 and 1.01 200 and 10.01 ANSWER DOWNLOAD EXAMIANS APP
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