Microwave Communication Which of the following is used as an oscillator device in the SHF band? Thyratron tube Tunnel diode Klystron tube Both B and C Thyratron tube Tunnel diode Klystron tube Both B and C ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the function of the duplexer is to Aid in calibrating the display unit Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna All of these Aid in calibrating the display unit Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna All of these ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by Varying the repeller voltage The AFC system Adjusting the flexible wall of the resonant cavity An adjustment in the synchronizer Varying the repeller voltage The AFC system Adjusting the flexible wall of the resonant cavity An adjustment in the synchronizer ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In microwave transmission using digital radio, what causes most intersymbol interference? Rayleigh fading Random Doppler shift Slow fading Delayed spreading Rayleigh fading Random Doppler shift Slow fading Delayed spreading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be A decrease in gain A decrease in range No noticeable effect A reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect A reduction in horizontal resolution ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is 1,000 watts 100 watts 10,000 watts 1,000,000 watts 1,000 watts 100 watts 10,000 watts 1,000,000 watts ANSWER DOWNLOAD EXAMIANS APP
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