YOKOGAWA AQ7260 OTDR, User Manual, Page: 166 / 442

Chapter 3 PERFORMING MEASUREMENTS
3-59
When the Trace Contains a Lot of Noise
If the trace obtained by average measurement contains so much noise that the trace
cannot be observed clearly, remove noise as explained below.
•
Use the filter function to eliminate noise.
•
Use the average measurement continue function to eliminate noise.
•
Increase the average time/interval and perform average measurement again.
•
Increase the pulse width and perform average measurement again.
•
Switch the average method to “DIVISION” and perform measurement again.
Using the Filter Function
The filter function setting can be changed as explained below.
♦
Example: “OFF”
→
“ON”
1.
Display the measurement condition/auto search condition change window.
For the method of displaying the window, refer to page 3-10.
2.
Locate the cursor to “FILTER” by using the rotary knob or the arrow key.
Refer