Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Duplexer stage Single mixer stage Local oscillator Transmitter oscillator Duplexer stage Single mixer stage Local oscillator Transmitter oscillator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What is the purpose of the electromagnetic field which surrounds a traveling-wave tube? To velocity modulate the electron beam To accelerate the electron To slow down the signal on the helix To keep the electrons from spreading out To velocity modulate the electron beam To accelerate the electron To slow down the signal on the helix To keep the electrons from spreading out ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 10 GHz 100 GHz 1 GHz 100 MHz 10 GHz 100 GHz 1 GHz 100 MHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication To achieve good bearing resolution when using a pulsed-radar set, an important requirement is A narrow, antenna-beam width in the vertical plane A narrow, antenna-beam width in the horizontal plane A high duty cycle A low repetition rate A narrow, antenna-beam width in the vertical plane A narrow, antenna-beam width in the horizontal plane A high duty cycle A low repetition rate ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication It is possible to increase the maximum range of a radar equipment by Lowering the pulse frequency Narrowing the beam width and increasing the pulse duration All of these Raising the peak power of the transmitter Lowering the pulse frequency Narrowing the beam width and increasing the pulse duration All of these Raising the peak power of the transmitter ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the reception problems below that is not due to multipath? Rayleigh fading Slow fading Delayed spreading Random Doppler shift Rayleigh fading Slow fading Delayed spreading Random Doppler shift ANSWER DOWNLOAD EXAMIANS APP
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