EXFO FastReporter Data Post-Processing Software - Manual (Page 44)

Working with OTDR Files
38 FastReporter
Changing OTDR Settings
5. Use the lists to change the numeric values precision setting for
distance and length, loss, reflectance, attenuation, or ORL, if desired.
These settings also affect span loss, average loss, average splice loss
and maximum splice loss.
6. To apply the changes without closing the dialog box, click Apply.
To return the general settings back to their original values, click
Default Settings.