Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Inter-electrode capacitance Electron transit time Distributed lead inductance Degree of emission from the cathode Inter-electrode capacitance Electron transit time Distributed lead inductance Degree of emission from the cathode 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 May be decreased Must be increased Must be doubled Must remain as before May be decreased Must be increased Must be doubled 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 Sixth Fifth Fourth Third Sixth Fifth Fourth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If k-factor is greater than 1, the array beam is bent Towards the ionosphere, Towards the outer space Away from the earth Towards the earth Towards the ionosphere, Towards the outer space Away from the earth Towards the earth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by The AFC system Adjusting the flexible wall of the resonant cavity Varying the repeller voltage An adjustment in the synchronizer The AFC system Adjusting the flexible wall of the resonant cavity Varying the repeller voltage An adjustment in the synchronizer ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following permits a microwave signal to travel in one direction with virtually no loss, but severely attenuates any signal attempting to travel in the reverse direction? Circulator Wave trap Tunnel diode Isolator Circulator Wave trap Tunnel diode Isolator ANSWER DOWNLOAD EXAMIANS APP
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