Microwave Communication In a pulsed radar set, the function of the duplexer is to Allow the transmitter and the receiver to operate from a common antenna Prevent frequency drift in the klystron Aid in calibrating the display unit All of these Allow the transmitter and the receiver to operate from a common antenna Prevent frequency drift in the klystron Aid in calibrating the display unit All of these ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers May be decreased Must remain as before Must be increased Must be doubled May be decreased Must remain as before Must be increased Must be doubled ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as a high power microwave oscillator? Magnetron Reflex-klystron Klystron Thyratron Magnetron Reflex-klystron Klystron Thyratron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance. Third Fourth Fifth Sixth Third Fourth Fifth Sixth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B) Must be capable of floating or being secured to a survival All of these Must have its battery replaced after emergency use May be tested during the first five minutes of any hour Must be capable of floating or being secured to a survival All of these Must have its battery replaced after emergency use May be tested during the first five minutes of any hour ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by 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 Varying the repeller voltage The AFC system Adjusting the flexible wall of the resonant cavity ANSWER DOWNLOAD EXAMIANS APP
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