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est-frame/docs/fluke/实训教程/实验三 铜缆故障分析/👋实训任务/任务二 长度类问题故障分析.md
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---
sidebar_position: 1
sidebar_label: 任务一 长度类故障
---
**任务二 长度类问题故障分析**
**【操作要领】**
**1.确定错误类型**
测试结果未通过时查看是否为长度、传输时延或时延偏离问题。如图1.8.21所示。
**2.长度类问题故障分析**
查看结果中长度详情,在测试分析时,传输时延和长度属于同一类问题,时延偏离属于线对间长度偏差问题。
![图1](media/778c3adbcdde64a64ba08d6d13578af6.png)