EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 66)

Performing and Analyzing Graph Acquisitions
58 IQS-1100/IQS-1500
Displaying and Moving Markers
Displaying and Moving Markers
Once you have acquired a trace, you can use markers to take precise
measurements.
To enable the markers:
1. Select the channel you want to use from the Channel pull-down list in
the Markers tab.
2. Click the On button.
The two markers, A and B, will appear on the display.
You can move the markers to the desired position by clicking them and
dragging them to the left or right; or you can use the arrow buttons next to
each marker to move them. The markers will move automatically to the
next available point when you move them either by dragging or with the
arrow buttons.
Note: If you have enabled the markers and you move to another tab (than the
Zoom tab), the markers will still be visible, but you cannot move them. You
must return to the Markers tab to do so.
You will notice that the difference between the markers (B − A) is
automatically refreshed on the lower part of the tab as you move the
markers.