6-23
IM AQ1210-01EN
Analyzing W
aveforms
11
22
33
44
55
66
77
88
99
10
10
11
11
App
App
Index
Index
Adjusting the Reference Level
7.
Tap the
More
soft key and then the
Reference Level Adjust
soft key. Marker
B
appears.
B
Reference point
Shows marker
The level at the reference point
(marker )
Section analysis values
between the reference point
and end point
B
End point
Shows marker E
Explanation
Section Analysis
In section 6.1, 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 Setting (set from markers)
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 instrument 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.
6.4 Analyzing Sections
