Fluke OF-500-01 OptiFiber, Technical Reference Handbook, Page: 122 / 278

OF-500 OptiFiber Certifying OTDR
Technical Reference Handbook
3-46
Table 3-5. Manual OTDR Settings (cont.)
RESOLUTION
(OFTM-561xB
modules)
The resolution* setting determines the distance between measurement samples. Shorter resolution
settings improve measurement accuracy and let you see more detail in and around reflective events,
but also increase test time. Longer settings decrease test time, but provide less accuracy and event
detail.
Minimum Resolution for Each Range
•
400 m: 3 cm
•
1 km: 6 cm
•
2 km: 12 cm
•
4 km: 25 cm
•
8 km: 50 cm
Auto: the tester selects the shortest resolution that is valid with the RANGE setting. Generally, Auto
is appropriate unless a shorter test time is more important than accuracy and detail.
* “Resolution” is called “data spacing” in Telcordia standards and “sample spacing” in other documents.
-continued-
Setting Description and Selection Guidelines