Microwave Communication Which causes multipath or frequency selective fading? Further reflector Small reflector Nearer reflector Large reflector Further reflector Small reflector Nearer reflector Large reflector ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers Must remain as before Must be increased Must be doubled May be decreased Must remain as before Must be increased Must be doubled May be decreased 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 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. Third Fourth Sixth Fifth Third Fourth Sixth Fifth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication As the electron beam moves through a klystron’s intercavity drift space Frequency modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The maximum usable range of the usual radar set (on any particular range setting) is determined by The duty cycle The interval between transmitted pulses The width of the transmitted pulses The bandwidth of the receiver IF stages The duty cycle The interval between transmitted pulses The width of the transmitted pulses The bandwidth of the receiver IF stages ANSWER DOWNLOAD EXAMIANS APP
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