Microwave Communication Which of the following is used as an oscillator device in the SHF band? Both B and C Tunnel diode Klystron tube Thyratron tube Both B and C Tunnel diode Klystron tube Thyratron tube ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The aquadag coating on the inside of PPI tube is used All of these To shield the electron beam from unidirectional magnetic As a second anode and to prevent the build-up of secondary field To focus the beam of primary electrons All of these To shield the electron beam from unidirectional magnetic As a second anode and to prevent the build-up of secondary field To focus the beam of primary electrons 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 A reduction in horizontal resolution No noticeable effect A decrease in gain A decrease in range A reduction in horizontal resolution No noticeable effect ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna? Isolator Magnetron Circulator Simplex Isolator Magnetron Circulator Simplex ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by Adjusting the flexible wall of the resonant cavity Varying the repeller voltage The AFC system An adjustment in the synchronizer Adjusting the flexible wall of the resonant cavity Varying the repeller voltage The AFC system An adjustment in the synchronizer ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 6370 mi 8493 mmi 6370 km 8493 km 6370 mi 8493 mmi 6370 km 8493 km ANSWER DOWNLOAD EXAMIANS APP
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