EXFO OTDR 2 - Manual (Page 150)

Analyzing Traces and Events
142 OTDR
Opening Measurement Files
Opening Measurement Files
When you open trace files, the application always displays the first
wavelength of the file.
When you open a file, the active wavelength will be the same as the one of
the previous file. The default view is displayed when opening a file
(see Selecting the Default View on page 76).
The table below presents the possible behavior of the zoom and markers
when you open traces. If you open old OTDR traces, see the corresponding
row for more information.
For information on how to navigate between traces, see Selecting the
Displayed Wavelength on page 115.
File Type Zoom Markers Selected Events
Measurement that
has been saved
with a manual
zoom.
Application zooms in
according to the zoom
area and zoom factor
that were saved with
the file.
The same zoom will
be applied to all
wavelengths.
Markers are
displayed in the
same state they
were when you
saved the file.
Markers will remain
in the same location
even if you switch to
another wavelength.
Selected events are
displayed in the
same state they
were when you
saved the file.
The selected events
can be different for
each wavelength.
Old trace file Traces are displayed in
full view mode.
Application defines
default positions for
markers.
The first event of the
trace is selected.
I
MPORTANT
If only the zoom, markers, or the selected event are modified, you
will not be prompted to save the file when measurement is closed,
you must save your file before opening another one.