HP8146A|惠普8146A|Agilent8146A|安捷伦8146A|Keysight8146A|是德科技8146A|光时域反射计------------------邓生：13728874587可用于各种常见波长适用于单模和多模光纤测量SPAN:1km-200kmPulse-width:5ns-1.0us垂直分辨力:0.2-5dB/p3.5寸软驱通讯接口RS-232,GP-IB7秒之内完成自动线绘制内置热敏纸打印机HP81462SH单模光纤测试插件波长:1310nm动态范围:30dBEventDeadzone:3mAttenuationDeadzone:30m)