Exfo FTB -5240S/5240BP Optical Spectrum Analyzer Instrukcja Użytkownika Strona 319

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Managing Results
OSA 313
Managing Markers
To display the automated markers:
Press the button. The focus will be done on the currently selected
channel in the Results tab.
To manually enter a marker position value:
1. If you have not done so already, press the button on the top
left-hand corner of the display to make the marker toolbar appear.
2. Set the marker by entering precise values in the box corresponding to it
or by dragging it on-screen.
As markers A and B appear on the graph, the following values will be
displayed in the marker toolbar.
power values corresponding to the wavelength position of both
markers (in the case of WDM, the active and reference values are
displayed; in the case of spectral transmittance and EDFA, the input
and output values are displayed).
wavelength or frequency difference between the markers (A-B)
power difference in dB between the markers
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