EXFO FTB -5240S/5240BP Optical Spectrum Analyzer User Manual
Page 290
Managing Results
284
FTB-5240S/S-P/BP
Managing Drift Test Results
When the acquisition is taken (see Starting a Measurement on page 237 for
details on how to perform a test), the active trace will be displayed in the
tab with information along the following axis values:
X axis: wavelength in nm or frequency in THz.
Y axis: optical power expressed in dBm, as measured in the optical
resolution bandwidth (RBW) of the OSA. This reference RBW is shown
at the bottom of the graph.
l
The graph will display peak indicators for all the channels found by the
application with a red vertical line over the peaks to indicate the peak
position.
A blue horizontal bar (
) will be displayed on the top of a channel if it
does not overlap with another channel. If the channel overlaps with
another channel, the horizontal bar will be yellow (
).
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