Microwave Communication When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have The shortest possible time A long time constant The restricted high-frequency response Low-pass filters The shortest possible time A long time constant The restricted high-frequency response Low-pass filters ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as a high power microwave oscillator? Thyratron Magnetron Reflex-klystron Klystron Thyratron Magnetron Reflex-klystron Klystron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the function of the duplexer is to Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit All of these Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit All of these 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 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 ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the reception problems below that is not due to multipath? Rayleigh fading Delayed spreading Random Doppler shift Slow fading Rayleigh fading Delayed spreading Random Doppler shift Slow fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The main frequency determining element of a klystron is Its resonant cavity The repeller voltage The accelerating voltage Its mode of operation Its resonant cavity The repeller voltage The accelerating voltage Its mode of operation ANSWER DOWNLOAD EXAMIANS APP
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