6-14
IM AQ1200-01EN
Explanation
Section Analysis
In sections 6.2 to 6.5, each item was measured with the distance reference as the reference point, but
in section analysis, each item is measured with the location that is specified as the start point within
the specified section as the reference point.
The distance, return loss, total loss, and loss per division (dB/km) between the S and E markers are
displayed on the screen.
Marker Auto Setup
You can automatically set marker
1
or marker n as the start point and marker
2
or marker E as the
end point.
You can use this feature to automatically set markers on waveform data in which marker
1
and
2
or n
and E are already set.
Adjusting the Reference Level
If you set marker
B
, which represents the reference point, the return loss is measured with this
location as the reference. The AQ1200 uses the backscattering light level of the reference point to
calculate the return loss. If you do not set the reference point, the start point is used as the reference
point.
6.6 Analyzing Sections
