EXAMIANS
Calculate the effective earth’s radius if the surface refractivity is 301.
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A high-power microwave pulse of the order of megawatts can be generated by a
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Microwave frequencies are normally regarded as those in the range of
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A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is
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A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be
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__________ is the progressive decrease of signal strength with increasing distance.
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The maximum usable range of the usual radar set (on any particular range setting) is determined by
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A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the
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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
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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?
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