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

Page 151

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Analyzing Traces and Events

OTDR

137

Viewing and Modifying Current Trace Settings

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You can change the fiber type of a multimode trace. The application
will adjust the fiber type of all multimode wavelengths (traces).

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Unless you are absolutely sure of the different parameter values, revert
to default values to avoid fiber setting mismatches. You should do the
same for other multimode wavelengths.

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If you already know the IOR value, you can enter it in the
corresponding box. However, if you prefer to let the application
calculate the IOR value as a function of the distance between span
start and span end, press Set IOR by Distance, then enter the distance
value.

4. If you want to save the modified IOR, RBS, and helix Factor values for

the next acquisitions performed at the current wavelength, select the
Save these settings for next acquisitions check box.

5. Press OK to apply the changes.

You return to the main window.