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Microwave Communication
To achieve good bearing resolution when using a pulsed-radar set, an important requirement is
A high duty cycle
A narrow, antenna-beam width in the horizontal plane
A narrow, antenna-beam width in the vertical plane
A low repetition rate
A high duty cycle
A narrow, antenna-beam width in the horizontal plane
A narrow, antenna-beam width in the vertical plane
A low repetition rate
Answer
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Related Question
Microwave Communication
The Gunn diode oscillator
Is capable of generating continuous microwave power of the order of kilowatt
Generates frequencies which are below 100 MHz
Depends on the formation of charge domain
Operates over a positive resistance characteristic
Is capable of generating continuous microwave power of the order of kilowatt
Generates frequencies which are below 100 MHz
Depends on the formation of charge domain
Operates over a positive resistance characteristic
Answer
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Microwave Communication
Calculate the effective earth’s radius if the surface refractivity is 301.
8493 mmi
6370 mi
6370 km
8493 km
8493 mmi
6370 mi
6370 km
8493 km
Answer
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Microwave Communication
It is possible to increase the maximum range of a radar equipment by
All of these
Raising the peak power of the transmitter
Narrowing the beam width and increasing the pulse duration
Lowering the pulse frequency
All of these
Raising the peak power of the transmitter
Narrowing the beam width and increasing the pulse duration
Lowering the pulse frequency
Answer
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Microwave Communication
A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the
Oscillation will cease
Bunching would occur earlier in time
The frequency will decrease
Output power would increase
Oscillation will cease
Bunching would occur earlier in time
The frequency will decrease
Output power would increase
Answer
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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.
Fourth
Third
Sixth
Fifth
Fourth
Third
Sixth
Fifth
Answer
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