Communication Systems Full duplex operation permits transmission in both directions at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? PCM Delta modulation Differential PCM PWM PCM Delta modulation Differential PCM PWM 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 1.01 200 and 100.1 200 and 200 200 and 10.01 200 and 1.01 200 and 100.1 200 and 200 200 and 10.01 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as High frequency Low frequency Medium frequency Very high frequency High frequency Low frequency Medium frequency Very high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. -3 3 1 2 -3 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 102.3 113 70.2 80.9 102.3 113 70.2 80.9 ANSWER DOWNLOAD EXAMIANS APP
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