When we found issues in our fiber, it has always been bad bends.  We have
Sumitomo splicers and they've all been flawless so far.  Just our
experience.

Our OTDR is cheap china junk - it can't actually detect the splices ~90% of
the time.  Veex demo units caught every single splice.

On Thu, Sep 28, 2023 at 9:33 AM Adam Moffett <dmmoff...@gmail.com> wrote:

> Can you have return loss (i.e. reflections) on bad fusion splices?
>
> Attached trace is a splitter showing return loss.  It's supposed to be
> fusion spliced, not connectorized.  There are several of these on this
> project.  Trying to figure out if contractor snuck in some incorrect parts
> or if he's got issues with his fusion splicer.  I'd assume it's bad
> splices, but maybe coincidentally the reflectance just happens to be about
> right for UPC connectors.
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