Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Remains unchanged Gets halved Gets increased by 50 percent Gets doubled Remains unchanged Gets halved Gets increased by 50 percent Gets doubled ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. False True False True ANSWER DOWNLOAD EXAMIANS APP
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 6E 3E 2E 4E 6E 3E 2E 4E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent excessive grid current Prevent over modulation Increase the bandwidth Prevent tuned circuit damping Prevent excessive grid current Prevent over modulation Increase the bandwidth Prevent tuned circuit damping 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. 113 80.9 70.2 102.3 113 80.9 70.2 102.3 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Laser beam for recording and video head for playback Video head for recording and laser beam for playback Laser beam for both recording and playback None of these Laser beam for recording and video head for playback Video head for recording and laser beam for playback Laser beam for both recording and playback None of these ANSWER DOWNLOAD EXAMIANS APP
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