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EXFO FTB-7000 OTDR for FTB-200 v2 User Manual

Page 236

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Analyzing Traces with the Bidirectional Analysis Application

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FTB-7000 Series

Using Zoom Controls

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When you zoom in or out on an event, the application keeps the zoom
on this event until you select another event or change the zoom
position. In the case of a multiwavelength file, you can select a
different event for each wavelength (for example, event 2 at 1550 nm
and event 5 at 1625 nm). Only the selected events of the bidirectional
measurement will be saved along with the bidirectional file.

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When you open an existing bidirectional file, the application restores
the zoom context of the bidirectional measurement. This zoom context
will also be applied to the A->B trace. The B->A trace will be displayed
in complete graph view and event 1 will be selected.

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If the

button is selected, as soon as you open another

bidirectional file, the option will be deselected. This will allow the
application to restore the zoom context that was saved along with the
measurement.