EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 254)

Analyzing Traces with the Bidirectional Analysis Application
240 FTB-7000 Series
Setting General Parameters
Setting General Parameters
You can set preferences such as:
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Distance unit: You can select the measurement units that will be used
throughout the application, except for certain values such as the pulse
and the wavelength. By convention, these values are always expressed
in meters (nanometers for the wavelengths). The default distance units
are the kilometers.
Note: If you select Kilometers (km) or Kilofeet (kft), m and ft may appear instead
to display more precise measurements.
Note: The attenuation of fiber sections is always presented in dB per kilometer
even if the distance units you selected are not the kilometers. This follows
the standards of the fiber-optic industry that provides the attenuation
values in dB per kilometer.
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Pulse width unit: You can select the unit that is used in the Trace Info.
tab to express the pulse value. The pulse value can be expressed in
units of time or distance.
Pulse width unit