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E6000 series OTDR

Question asked by zador on Jan 9, 2009
Latest reply on Jan 13, 2009 by juma
Is anyone here familiar enough with this system to know about end-of-scan events? I have found 0 info on this in the manuals or elsewhere.

Starting from awhile back, the unit I have consistently generates an end-of-scan event before the fiber end. The trace has no feature whatsoever at the point where the unit places an end-of-scan marker. Any events past end-of-scan are marked as out-of-range.

My real problem with this is that I can no longer seem to get an accurate fiber length estimate. Whereas before I could consistently measure to within inches, now I can get a variation of several feet. This problem appeared together with the end-of-scan thingy, so I wonder if they may be related.

Any pointers?