Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Local oscillator Transmitter oscillator Duplexer stage Single mixer stage Local oscillator Transmitter oscillator Duplexer stage Single mixer stage 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 A reduction in horizontal resolution No noticeable effect A decrease in range A decrease in gain A reduction in horizontal resolution No noticeable effect ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What allow microwave to pass in only one direction? Varactor-triac Capacitor Ferrite emitter RF emitter Varactor-triac Capacitor Ferrite emitter RF emitter 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 The restricted high-frequency response Low-pass filters A long time constant The shortest possible time The restricted high-frequency response Low-pass filters A long time constant The shortest possible time ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following operating frequencies is used for the modern loran navigational system? Loran A: 1950 kHz Loran C: 100 kHz Loran D: 10.2 kHz Loran B: 900 kHz Loran A: 1950 kHz Loran C: 100 kHz Loran D: 10.2 kHz Loran B: 900 kHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If k-factor is greater than 1, the array beam is bent Towards the ionosphere, Towards the outer space Away from the earth Towards the earth Towards the ionosphere, Towards the outer space Away from the earth Towards the earth ANSWER DOWNLOAD EXAMIANS APP
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