Microwave Communication Which causes multipath or frequency selective fading? Nearer reflector Small reflector Further reflector Large reflector Nearer reflector Small reflector Further reflector Large reflector 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 slow down the signal on the helix To accelerate the electron To keep the electrons from spreading out To velocity modulate the electron beam To slow down the signal on the helix To accelerate the electron To keep the electrons from spreading out To velocity modulate the electron beam ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What do you call an attenuation that occurs over many different wavelengths of the carrier? Rician fading Rayleigh fading Wavelength fading Slow fading Rician fading Rayleigh fading Wavelength fading Slow fading 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 The Gunn diode oscillator Depends on the formation of charge domain Generates frequencies which are below 100 MHz Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt Depends on the formation of charge domain Generates frequencies which are below 100 MHz Operates over a positive resistance characteristic Is capable of generating continuous microwave power of the order of kilowatt ANSWER DOWNLOAD EXAMIANS APP
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