Fluke OF-500-01 OptiFiber, Technical Reference Handbook, Page: 121 / 278

Using the OTDR
Using Manual OTDR Mode
3-45
3
Using Manual OTDR Mode
Note
You should use Auto OTDR mode when certifying
cabling with the OTDR.
Manual OTDR mode lets you optimize the OTDR trace for
viewing specific events.
To select Manual OTDR mode, exit to the HOME screen,
press
A
Change Test; then select Manual OTDR.
Table 3-5 describes the settings you can change in Manual
OTDR mode and how the settings affect the trace. You can
access these settings on the OTDR tab in SETUP.
Tip: To see the settings used for an OTDR test, press
C
View Details on the OTDR SUMMARY screen; then
press
A
OTDR Settings. The settings used may be
slightly different from the nominal values selected on
the OTDR tab.
Table 3-5. Manual OTDR Settings
Setting Description and Selection Guidelines
RANGE* The range setting determines the maximum distance shown on the trace. Select the range that is
nearest to, but not less than, the distance to the event you want to study. If the tester does not
correctly identify the end event, run the OTDR test again using the next highest range.
Auto: the tester selects the maximum range that is valid with the RESOLUTION setting. If
RESOLUTION is set to Auto, the tester selects the range that is nearest to, but not less than the end
of the fiber. These ranges are not limited to the fixed ranges provided.