Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by 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 An adjustment in the synchronizer Varying the repeller voltage 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
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Direct coax-helix match All of these Waveguide match Cavity match Direct coax-helix match All of these Waveguide match Cavity match ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By bunches of electrons passing the cavity grids By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By bunches of electrons passing the cavity grids By feedback between the accelerating grid and the repeller ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 MHz 100 GHz 1 GHz 10 GHz 100 MHz 100 GHz 1 GHz 10 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon Its electrical dimensions Its physical dimensions The mode of operation The capacitor which tunes it Its electrical dimensions Its physical dimensions The mode of operation The capacitor which tunes it ANSWER DOWNLOAD EXAMIANS APP
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