尺骨3013是整体表现最佳的发射器所提供的前置作业是在农村或半农村地区，最小的高功率的特点。
The ULNA 3013 is the overall best performer provided the preamp is operating in rural or semi-rural areas that feature minimal high power transmitters.
该系统分为前置放大器、带阻网络、FPGA数字处理模块、功率放大器等模块组成。
The system incorporates preamplifier, band-stop network, FPGA digital processing module and power amplifier circuits.
文章介绍了采用远泵掺铒光纤功率放大技术、远泵掺铒光纤前置放大技术、拉曼噪声抑制技术和前向误码纠错等技术，工程上常用的G。
This paper introduces the technologies of remote pumped erbium-doped optical fiber amplifier, remote pumped optical fiber pre -amplifier, Raman noise filtering and forward error correction used in G.
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