EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 132)

Customizing the Application
118 OTDR
Customizing the Acquisition Distance Range Values
Customizing the Acquisition Distance Range
Values
Note: This function is available in Advanced mode only.
If your OTDR model is FTB-7000D or later, youYou can customize the values
associated with the Distance dial. Once the customization is complete,
you are ready to set the distance range value for your test. For more
information, see Setting Distance Range, Pulse Width, and Acquisition Time
on page 71.
Note: The Auto value cannot be modified.