EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 130)

Analyzing Traces and Events
116 FTB-7000 Series
Measure Tab
Measure Tab
The application shows two, three or four markers: a, A, B, and b,
depending on the button you pressed under Results.
These markers can be repositioned along the trace to calculate loss,
attenuation, reflectance, and optical return loss (ORL).
You can reposition all markers by using the controls in the Markers section.
You can drag them directly from the trace display. You can also use
from the keypad to select the desired marker and
move it with the selection dial located on the front of the FTB-200 v2
Compact Modular Platform. Selecting marker A or B will move the a-A or
B-b pair.
For more information on how to perform manual measurements,
see Analyzing the Results Manually on page 163.
Trace Info. Tab
The information about all the trace files (including the reference) can be
displayed.
You can view all of the traces, in turn, in both the Trace Info pane and the
trace display with the navigation buttons. For more information, see
Displaying or Hiding a Trace on page 130.