Microwave Communication __________ is the progressive decrease of signal strength with increasing distance. Radiation Propagation Attenuation Modulation Radiation Propagation Attenuation Modulation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If k-factor is greater than 1, the array beam is bent Towards the ionosphere, Towards the earth Away from the earth Towards the outer space Towards the ionosphere, Towards the earth Away from the earth Towards the outer space ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The cavity resonator 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 Produces a frequency which is independent of the cavity size. Has a low Q factor for narrow operation. ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following operating frequencies is used for the modern loran navigational system? Loran C: 100 kHz Loran B: 900 kHz Loran A: 1950 kHz Loran D: 10.2 kHz Loran C: 100 kHz Loran B: 900 kHz Loran A: 1950 kHz Loran D: 10.2 kHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by 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 Adjusting the flexible wall of the resonant cavity Varying the repeller voltage The AFC system ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What is the purpose of the electromagnetic field which surrounds a traveling-wave tube? To keep the electrons from spreading out To velocity modulate the electron beam To accelerate the electron To slow down the signal on the helix To keep the electrons from spreading out To velocity modulate the electron beam To accelerate the electron To slow down the signal on the helix ANSWER DOWNLOAD EXAMIANS APP
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