6-8
IM AQ1200-01EN
6.2 Measuring Distances
By placing the cursor on the acquired waveform, you can measure the distance to events such as
reflections and splice losses.
Procedure
Using the Cursor to Measure the Distance
Follow the procedure below to measure the distance between the distance reference and the cursor.
1.
Using the
rotary knob
and
ENTER
, select
OTDR
to display the following screen.
2.
Turn the rotary knob to display the cursor.
3.
Move the cursor to a position where an event is displayed.
Cursor
Distance from the measurement start position to the cursor
Measurement start position
Note
• For details on the cursor, see section 6.1.
• The location where the Instrument and the optical fiber are connected is the distance reference. To
perform more accurate measurements, zoom in on the waveform.
Using Markers to Measure the Distance
Follow the procedure below to measure the distance between two markers.
1.
Using the
rotary knob
and
ENTER
, select
OTDR
.
2.
Press the
Marker
soft key and then the
2 Point Markers
soft key to display the following
screen.
3.
Set marker
1
and marker
2
at positions where events are displayed.
Distance between
markers
Distance between markers
Note
• Place the markers so that marker
1
(or marker n if Marker Mode is set to Line) is the measurement
start point (the distance reference). (The figure shown above is an example where Marker Mode is set to
Marker.)
• For details on the soft keys, see section 6.1.