Microwave Communication In a pulsed radar set, the function of the duplexer is to Aid in calibrating the display unit Allow the transmitter and the receiver to operate from a common antenna Prevent frequency drift in the klystron All of these Aid in calibrating the display unit Allow the transmitter and the receiver to operate from a common antenna Prevent frequency drift in the klystron All of these ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Klystron tube Thyratron tube Tunnel diode Both B and C Klystron tube Thyratron tube Tunnel diode Both B and C 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 __________ is the progressive decrease of signal strength with increasing distance. Modulation Radiation Attenuation Propagation Modulation Radiation Attenuation Propagation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What is the purpose of the electromagnetic field which surrounds a traveling-wave tube? To accelerate the electron To velocity modulate the electron beam To keep the electrons from spreading out To slow down the signal on the helix To accelerate the electron To velocity modulate the electron beam To keep the electrons from spreading out To slow down the signal on the helix ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In microwave transmission using digital radio, what causes most intersymbol interference? Random Doppler shift Slow fading Delayed spreading Rayleigh fading Random Doppler shift Slow fading Delayed spreading Rayleigh fading ANSWER DOWNLOAD EXAMIANS APP
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