Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Bedienungsanleitung PDF herunterladen (Seite 353)

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101

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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