EXFO MAX-700 - Manual (Page 186)

Analyzing the Results Manually
174 MAX-700
Getting Event Loss (Four-Point and Least-Square Approximation)
To get event loss:
1. From the main window, select the Measure tab.
2. In the Results section, press Loss. Markers a, A, B and b appear on the
graph.
3. Zoom in and position marker A at the end of the linear area preceding
the event to be measured. For more information, see Using Zoom
Controls on page 125 and Using Markers on page 169.
4. Position submarker a at the beginning of the linear area preceding the
event to be measured (must not include any significant events).