EXFO FastReporter 2 User Manual
Page 132
Advertising
Working with OTDR Files
122
FastReporter 2
Changing OTDR Settings
Although you can set the event matching tolerance to as little as 20 meters
for each pulse width, the results may differ due to cursor aliasing. Cursor
aliasing checks if markers A and B for two events overlap. These markers
are set during analysis. Marker A represents the beginning of a measured
event while marker B represents its end.
This means that two events could be matched in the event table even if
their markers A are farther apart than the tolerance if there is an overlap
between the spans created by their markers A and B. Cursor aliasing
becomes more important with larger pulse widths since these traces have
greater A-B spans.
Advertising