Atec Fluke-OF-500 - Manual (Page 48)

OF-500 OptiFiber Certifying OTDR
Users Manual
38
Comparing OTDR Traces
The trace overlay function lets you see two OTDR traces
at the same time. This lets you do the following:
•
Compare a link’s current trace with a past trace to
see if the link has changed.
• Compare traces from links in the same run to check
for differences.
To compare two traces, do the following:
1 Run an OTDR test; then press A View Trace.
or
View an OTDR trace from a saved record.
This trace is the Comparison Trace.
2 Press F . This brings up the OTDR FUNCTIONS
menu.
3 Select New Reference Trace.
4 On the VIEW RECORDS screen, select a record. Only
records with OTDR traces are shown.
The test’s trace becomes the Reference Trace on the
OTDR FUNCTIONS menu.
5 Press e .
The reference trace stays on the plot until you turn off
the trace overlay function.