The design of an optical fiber data transmitting repeater is described. This repeater is made of 4 special hybrid modules. The concrete circuits, measured and theoretical results are given.

本文介绍了一种采用4个厚膜功能模块构成的光纤数据传输中继器的设计方法，给出了具体电路及理论、测试结果。

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This produces a maximum path delay, which is the delay between two DTEs of 400 meters, plus the repeater delay of one repeater instead of four repeaters.

这样就产生了一个最大路径迟延，也就是两个DTE之间的400米迟延，另外一个中继器的迟延取代了四个中继器的迟延。

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And the repeater antenna is an important part of the repeater system, which has a direct affect on coverage and signal quality.

而直放站天线是直放站的重要组成部分，直接影响到直放站的覆盖范围和信号质量。

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Such a quantum repeater uses groups of three photons for each bit of the message.

ECONOMIST: Quantum information technology

The repeater is a like a high-voltage machine gun, for example, but with different upgrades and ammo.

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But a traditional repeater destroys the quantum states of the photons, such as their planes of polarisation.

ECONOMIST: Quantum information technology