YOKOGAWA AQ7260 OTDR, User Manual, Page: 163 / 442

Chapter 3 PERFORMING MEASUREMENTS
3-56
Performing Average Measurement
Average measurement obtains data for each pulse, calculates the mean of the data
obtained for all the pulses, and then displays it.
This method improves the signal to noise ratio (S/N), and is effective when you want to
detect weak signals overwhelmed by noise.
If “NORMAL” or “Hi-RETURN” has been set for “AVERAGE METHOD”, the attenuation
that has been set will be disabled since the instrument sets an appropriate attenuation
automatically and performs measurement.
For details on average method, refer to page 3-30.
1.
Press [AVE].
Average measurement will start.
WARNING
Do not disconnect the optical fiber from the instrument during measurement.
Laser beams are invisible to the naked eye, but if they enter the eyes, they may cause
impaired eyesight.
Refer