Why is my FF-980REV OTDR event list empty even though the curve is okay?

This issue is typically caused by an incorrect threshold value. To resolve it, please reset all parameters on your FF-980REV OTDR to their factory settings.

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FF-980REV OTDR curve is ok, but there is nothing in event list area

August 28, 2026August 27, 2026 by Eric Yang - Technical Support

FF-980REV OTDR curve is ok, but there is nothing in event list area. What can I do? This issue should be caused by incorrect threshold value. Please reset all parameters to factory setting.

Eric Yang — Senior Technical Support Engineer

Eric specializes in PON network testing, OTDR diagnostics, and optical fiber monitoring solutions at FirstFiber Technologies.
✉️ Email: tech@firstfibertech.com

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Eric Yang — Senior Technical Support Engineer

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