EXFO FTB -5240S/5240BP Optical Spectrum Analyzer - Manual (Page 27)

Preparing Your OSA for a Test
OSA 21
Performing User Calibration
6. Note the measurements to a .txt file using the following format:

The first column is the reference wavelengths, in nm.

The second column is the wavelength read by your module, in nm.

The third column is the reference power, in dBm.

The fourth column is the power read by your module, in dBm.
Note: The columns are separated by a semi-colon (;). You can have up to 100
calibration points.
Here is an example of a measurement file:
1310.154; 1310.167; -1.34; -1.55
1490.000; 1490.000; 1.09; 1.15
1551.334; 1551.298; -5.20; -5.45
1625.401; 1625.448; 0.00; 0.00
Note: The decimal separator is a point ( . ). This format is independent of the
regional settings.
7. Save your .txt file in a location of your choice.