词条„sky wave“在英语 » 德语中的译文

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sky wave 名词

用户条目

sky wave 电信

Raumwelle f

单语范例（未经PONS编辑处理）

英语

Within this region, no signal can be received because, due to the actual conditions of the local ionosphere, the relevant sky waves are not reflected but penetrate the ionosphere.

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Covered are topic such as wavelength, frequency, nature and propagation of radio waves; ground and sky waves; skip distance; and fading.

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At distances of several hundred km the reflected signal (termed the sky wave) is stronger than the direct signal (termed the ground wave).

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Sky wave propagation occurs in the waveguide formed by the ground and ionosphere, each serving as reflectors.

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At shorter distances, only the first hop sky wave is of importance.

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This increases the distance to the mush zone where the ground wave and sky wave are at similar strength at night.

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During the times of sunrise and/or sunset, there is sometimes a phase gain or loss of 360 because of the irreversible behavior of the first sky wave.

en.wikipedia.org