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Figure 193
Example of OSA test result (with grid)
Filename
Mini-trace display
Wavelengths and power at
point of trace referenced
by cursors A and B
Wavelength and power
difference between
cursors A and B
Number of the channel
Display functions
Zoom function
The Zoom function is used to analyze part of the trace in greater detail. In association
with Channel (WDM/OSA) it enables rapid checking of a succession of events or chan-
nels.
The zoom is centered on the cursor selected. If the two cursors A and B are selected,
the zoom is centered midway between the two cursors.
The position of the section of trace displayed with respect to the complete trace is repre-
sented by a red rectangle on the mini-trace at the top left-hand corner of the screen.
To define a zoom on the trace:
1
Select Cursor A or B and center it on the zone to be examined
2
On the
3
Use the
Shift/Zoom
key, select the
or
key to increase or reduce the zoom factor.
User Manual
Chapter 12 High Resolution OSA Measurement
Fiber number
Zoom
function.
78000010220 Rev. 024
Trace display functions
Channel
391
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Troubleshooting
