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 be increased Must be doubled Must remain as before May be decreased Must be increased Must be doubled Must remain as before May be decreased ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the reception problems below that is not due to multipath? Random Doppler shift Delayed spreading Slow fading Rayleigh fading Random Doppler shift Delayed spreading Slow fading Rayleigh fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the STC circuit is used to Increases receiver sensitivity for echoes from targets Reduce interference from the effects of sea return Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution Increases receiver sensitivity for echoes from targets Reduce interference from the effects of sea return Vary the pulse frequency in order to control the maximum target Improve the target bearing resolution ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the Bunching would occur earlier in time Oscillation will cease The frequency will decrease Output power would increase Bunching would occur earlier in time Oscillation will cease The frequency will decrease Output power would increase ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If k-factor is greater than 1, the array beam is bent Away from the earth Towards the ionosphere, Towards the outer space Towards the earth Away from the earth Towards the ionosphere, Towards the outer space Towards the earth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 6370 km 8493 mmi 8493 km 6370 mi 6370 km 8493 mmi 8493 km 6370 mi ANSWER DOWNLOAD EXAMIANS APP
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