EXAMIANS
Klystron oscillators are most often used in the frequency range of
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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.
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To achieve good bearing resolution when using a pulsed-radar set, an important requirement is
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In a pulsed radar set, the STC circuit is used to
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A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B)
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The coarse frequency adjustment of a reflex klystron is accomplished by
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Calculate the effective earth’s radius if the surface refractivity is 301.
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Rainfall is an important factor for fading of radio waves at frequencies above
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In an SHF pulsed radar set, a reflex klystron can be used as a
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The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:where R = effective earth radius (m) and L = path length (m)
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