Chapter 3 PERFORMING MEASUREMENTS
3-17
2. Press [ENTER].
A selection window will appear.
The distance ranges that can be selected vary with the optical module and
wavelength used. The table below shows the distance ranges that can be selected
in the case of AQ7264 optical module.
3. Locate the cursor to “80km” by using the rotary knob or [S] / [T].
4. Press [ENTER] to register the change made to the distance range setting.
5. Press [F4] (DONE) to register the changes made to the measurement
conditions.
•When a new distance range is set, appropriate pulse width and attenuation will be
set automatically.
•When changing the condition for two or more items, it is recommended to change
the condition for each item first and then press [F4].
Refer to the notes given on changing the measurement conditions (page 3-50).
TIP
Refer
TIP
Wavelength 1.31µm 1.55µm
2km 2km
5km 5km
10km 10km
20km 20km
40km 40km
80km 80km
160km 160km
240km 240km
320km 320km
Selectable
distance ranges
640km
Shorter
Longer
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