4-2
IM AQ7280-01EN
How to Use Markers
You can use markers to measure values such as the distance, splice loss, or return loss between two
points.
Marker Menu (Marker Mode: Marker)
1.
From the top menu, select
OTDR
.
2.
Press the
Marker
soft key to display the marker menu.
Switches to the screen that is used to measure 2 Point markers.
For the measurement principle, see section 1.4.
Switches to the screen that is used to measure 4 Point markers.
For the measurement principle, see section 1.4.
Switches to the screen that is used to
measure 6 Point markers.
For the measurement principle, see
section 1.4.
Sets or clears the distance
reference.
Sets the distance reference
(marker R) at the cursor position.
Clears the markers and cursors.
Preset markers.
Register markers that you set in advance,
and apply them on waveforms during
measurement when necessary.
2 Point Markers
Press the
2 Point Markers
soft key to display the following screen.
Sets marker .
Marker
is set at the cursor
position.
1
1
Sets marker .
Marker
is set at the cursor
position.
2
2
Turns the cursor link on or off
1
Marker
2
Marker
Marker information
Note
• When you set the marker positions, set them so that the
1
marker is the measurement start point (the
distance reference).
• The measured loss value differs depending on the specified approximation method.
4.1 Analyzing Waveforms