Communication Systems Which of the following is used to generate PDM? Schmitt trigger Free running multi-vibrator Monostable multi-vibrator JK flip-flop Schmitt trigger Free running multi-vibrator Monostable multi-vibrator JK flip-flop ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation is maximum in all directions The radiation at right angles is zero The radiation at right angles is maximum The radiation is zero in all directions The radiation is maximum in all directions The radiation at right angles is zero The radiation at right angles is maximum The radiation is zero in all directions 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 80.9 70.2 113 102.3 80.9 70.2 113 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems To eliminate ghosts in the picture Use a longer transmission line Change the antenna orientation of location Twist the transmission line Connect a booster Use a longer transmission line Change the antenna orientation of location Twist the transmission line Connect a booster ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In practical commercial FM system, channel bandwidth is 88 MHz 100 kHz 108 MHz 150 kHz 88 MHz 100 kHz 108 MHz 150 kHz ANSWER DOWNLOAD EXAMIANS APP
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