Chapter 3 PERFORMING MEASUREMENTS
3-19
2. Press [ENTER].
A selection window will appear.
The pulse widths that can be selected vary with the optical module, wavelength and
distance range selected. The table below shows the pulse widths that can be
selected in the case of AQ7264 optical module and wavelength of 1.55µm.
3. Locate the cursor to “200ns” by using the rotary knob or [S] / [T].
4. Press [ENTER] to register the change made to the pulse width setting.
5. Press [F4] (DONE) to register the changes made to the measurement
conditions.
• When a new pulse width is set, appropriate 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).
Shorter
Longer
TIP
Refer
TIP
Distance range
2km
5km
10km
20km
40km
80km
160km
240km
320km
640km
10ns 10ns 10ns 10ns 10ns
20ns 20ns 20ns 20ns 20ns
50ns 50ns 50ns 50ns 50ns
100ns 100ns 100ns 100ns 100ns
200ns 200ns 200ns 200ns 200ns
500ns 500ns 500ns 500ns 500ns
1µs 1µs 1µs 1µs
4µs 4µs 4µs
10µs 10µs 10µs
20µs 20µs
Selectable
pulse widths
50µs
To Next Page
Loading...
