Exfo FTB-7000 OTDR Series for FTB-500 Instrukcja Użytkownika Pobierz pdf (Strona 152)

100

101

Analyzing Traces and Events

138 OTDR

Using Zoom Controls

³ When you manually zoom in or out on a trace, the application will

apply the new zoom factor and marker positions to the other traces

(wavelengths) of a same file and on the reference file, if applicable.

Both the zoom factor and marker positions will be saved along with the

trace (same settings for all wavelengths).

³ When you zoom in or out on the selected event, the application keeps

the zoom on this event until you select another event or change zoom

or marker positions (via the Measure tab). You can select a different

event for each wavelength (for example, event 2 at 1310 nm and

event 5 at 1550 nm). The selected events will be saved along with the

trace.

³ You can also apply the zoom factor and marker positions of the current

trace to all the trace files that are currently open. However, these files

will be treated exactly as if you manually zoomed in or out on the

traces.

To view specific portions of the graph:

1. On the trace display, drag the magnifying glass icon to the area where

you want to adjust the zoom.

2. Select the desired type of zoom.

3. Press the button corresponding to the desired behavior as many times

as needed.

Zoom along vertical axis only

Zoom along horizontal axis only Zoom along both axes

Zoom in Zoom out

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