Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 MHz 1 GHz 10 GHz 100 GHz 100 MHz 1 GHz 10 GHz 100 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By bunches of electrons passing the cavity grids By plate-to-cathode feedback By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By bunches of electrons passing the cavity grids By plate-to-cathode feedback By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 8493 mmi 6370 mi 6370 km 8493 km 8493 mmi 6370 mi 6370 km 8493 km ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. Tune the magnetron to the correct frequency To the tone of the pulse repetition Which may be used to tune the radar receiver Which may be used to tune the radar synchronizer Tune the magnetron to the correct frequency To the tone of the pulse repetition Which may be used to tune the radar receiver Which may be used to tune the radar synchronizer 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 Third Fifth Sixth Fourth Third Fifth Sixth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The cavity resonator Produces a frequency which is independent of the cavity size. Has a low Q factor for narrow operation. In a reflect klystron has its output taken from the reflector plate Is equivalent to an LC resonant circuit Produces a frequency which is independent of the cavity size. Has a low Q factor for narrow operation. In a reflect klystron has its output taken from the reflector plate Is equivalent to an LC resonant circuit ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS