Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix At the collector ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as a high power microwave oscillator? Reflex-klystron Magnetron Thyratron Klystron Reflex-klystron Magnetron Thyratron Klystron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A PPI cathode-ray tube as used on a radar set Indicates only the range of a target Is used to check the percentage of modulation Indicates both the range and azimuth of a target Is used for receiver alignment Indicates only the range of a target Is used to check the percentage of modulation Indicates both the range and azimuth of a target Is used for receiver alignment 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 range A decrease in gain No noticeable effect A reduction in horizontal resolution A decrease in range A decrease in gain No noticeable effect A reduction in horizontal resolution ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The Gunn diode oscillator Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Depends on the formation of charge domain Generates frequencies which are below 100 MHz Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Depends on the formation of charge domain Generates frequencies which are below 100 MHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by Varying the repeller voltage An adjustment in the synchronizer Adjusting the flexible wall of the resonant cavity The AFC system Varying the repeller voltage An adjustment in the synchronizer Adjusting the flexible wall of the resonant cavity The AFC system ANSWER DOWNLOAD EXAMIANS APP
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