EXAMIANS
__________ is the progressive decrease of signal strength with increasing distance.
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A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor.
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Which of the following is used as a high power microwave oscillator?
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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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Which of the following is used as an oscillator device in the SHF band?
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A traveling-wave tube (TWT) amplifies by virtue of
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If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the
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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
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In a pulsed radar set, the function of the duplexer is to
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The main frequency determining element of a klystron is
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