EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) User Manual
Page 353
Managing Results
Optical Spectrum Analyzer
345
Managing DFB Test Results
To define a marker:
1. From the main window, press the Markers tab.
2. Set the marker by entering precise values in the A and B boxes.
Vertical markers A and B appears on the graph and the following
values will be displayed in the Markers tab.
³
power value corresponding to the wavelength position of both the
markers.
³
wavelength difference between the markers (A-B)
³
power difference in dB between the markers
³
integrated power between markers in dBm.
You can also move the markers directly on the DFB Graph tab. Drag
the marker to the desired area in the display. You will notice that the
corresponding box in the Markers tab changes according to the
marker’s position. If you want to set a precise value for the marker,
simply enter it in the box.
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