EXFO FastReporter 2 - Manual (Page 208)

Working with OPM/PPM Measurements
198 FastReporter 2
Changing the Correction Factor (FR2-FC Mode)
Changing the Correction Factor (FR2-FC Mode)
Correction factors are used to adjust the OPM and PPM measurements.
The correction factor is specified by wavelength only, and the fiber core
size is not taken into account. FastReporter 2 allows you to change the
correction factor for PPM file types. These corrections should be made
before the measurement is taken and should be stored with each
measurement. A correction factor of 1.0 has no effect on the
measurement.
Note: The correction factor is not available for measurements from iOLM files.
To change the correction factor:
1. Open an OPM or a PPM measurement file.
2. Select the measurements for which you want to change the correction
factor.
3. In the Results window, select the Summary tab.
4. Modify the correction factors associated with the wavelengths as
needed. Click the desired correction factor value under Test Settings
column and modify it.