EXFO FTB -5240S/5240BP Optical Spectrum Analyzer - Manual (Page 316)

Managing Results
310 FTB-5240S/S-P/BP
Using Zoom Controls
To view specific portions of the graph:

You can define which portion of the graph will be visible by pressing
and dragging the graph with the stylus or your finger.

You can also zoom in on a specific area by pressing and defining
the zoom area with the stylus or your finger (a rectangle with dotted
lines will appear to help you define the area). Once you release the
stylus, the application automatically zooms in on the graph.

You can zoom in or out on the center of the portion of the graph that is
displayed by using, respectively,
or . The application
automatically adjusts the zoom by 50 % and 100 % respectively.
To automatically zoom in on the selected peak:
Select the peak on the graph or in the table results and press
.
To revert to the complete graph view:
Press .