Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. Which may be used to tune the radar synchronizer To the tone of the pulse repetition Tune the magnetron to the correct frequency Which may be used to tune the radar receiver Which may be used to tune the radar synchronizer To the tone of the pulse repetition Tune the magnetron to the correct frequency Which may be used to tune the radar receiver ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have A long time constant Low-pass filters The restricted high-frequency response The shortest possible time A long time constant Low-pass filters The restricted high-frequency response The shortest possible time 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 Generates frequencies which are below 100 MHz Depends on the formation of charge domain Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Generates frequencies which are below 100 MHz Depends on the formation of charge domain 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 reduction in horizontal resolution A decrease in gain No noticeable effect A decrease in range A reduction in horizontal resolution A decrease in gain No noticeable effect A decrease in range ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon The mode of operation Its electrical dimensions Its physical dimensions The capacitor which tunes it The mode of operation Its electrical dimensions Its physical dimensions The capacitor which tunes it ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The energy liberated form the collector The absorption of energy by the signal from an electron stream The energy contained the cavity resonators The effect of an external magnetic field The energy liberated form the collector The absorption of energy by the signal from an electron stream The energy contained the cavity resonators The effect of an external magnetic field ANSWER DOWNLOAD EXAMIANS APP
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