
2-16
IM AQ1210-01EN
Line
After you select the line marker that you want to operate from a set of multiple line markers, move
the selected line marker directly. The value of the line marker's section is calculated, and the return
loss and splice loss are measured. Each value is calculated in real time as you move the line
marker. For instructions on how to use markers, see section 6.1.
Example of 5 Point Markers: Line
Note
Line is often used outside of Japan. Marker is often used within Japan. It is used on existing YOKOGAWA
models.
Displaying Approximation Lines
In the 4 Point (marker mode set to Marker) or 5 Point (marker mode set to Line) marker modes, you
can display the approximation lines that are used to calculate splice loss or return loss.
OFF: Approximation lines are not displayed.
ON: Approximation lines are displayed.
Example of 4 Point Markers: Marker
1 2
3
Y2
Approximation line Y2–
3
2
1
3
Example of 5 Point Markers: Line
n
N
f
F
E
Approximation
line F–f
Approximation
line n–N
2.3 Display (OTDR) Conditions