Microwave Communication Oscillators of a klystron tube are maintained By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By feedback between the accelerating grid and the repeller ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 6370 km 8493 mmi 6370 mi 8493 km 6370 km 8493 mmi 6370 mi 8493 km 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 May be tested during the first five minutes of any hour All of these Must have its battery replaced after emergency use Must be capable of floating or being secured to a survival May be tested during the first five minutes of any hour All of these Must have its battery replaced after emergency use 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. Fourth Fifth Third Sixth Fourth Fifth Third Sixth 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 shortest possible time Low-pass filters The restricted high-frequency response A long time constant The shortest possible time Low-pass filters The restricted high-frequency response A long time constant ANSWER DOWNLOAD EXAMIANS APP
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 All of these Prevent frequency drift in the klystron Aid in calibrating the display unit Allow the transmitter and the receiver to operate from a common antenna All of these Prevent frequency drift in the klystron Aid in calibrating the display unit ANSWER DOWNLOAD EXAMIANS APP
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