This range can be extended by using SELEX Communications' Repeater Radio Units (Radio Relay).
该射程可以通过使用SELEX通信的转发器无线电台(电台继电器)来扩大。
Repeater optical amplifiers for WDM optical communications systems have wide gain spectrums and, therefore, can simultaneously provide gain over the range of wavelengths used in the WDM system.
用于WDM光通信系统的中继光放大器具有宽增益光谱并因此能够同时提供WDM系统中所用的整个波长范围内的增益。
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