Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 4E 2E 3E 6E 4E 2E 3E 6E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Differential PCM PWM PCM Delta modulation Differential PCM PWM PCM Delta modulation 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. 80.9 102.3 113 70.2 80.9 102.3 113 70.2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is Single tone modulation FSK Two tone modulation PCM Single tone modulation FSK Two tone modulation PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Free running multi-vibrator JK flip-flop Schmitt trigger Monostable multi-vibrator Free running multi-vibrator JK flip-flop Schmitt trigger Monostable multi-vibrator 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 100.1 200 and 10.01 200 and 200 200 and 1.01 200 and 100.1 200 and 10.01 200 and 200 200 and 1.01 ANSWER DOWNLOAD EXAMIANS APP
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