Measurement Of Reflectance; Splice Measurements - Viavi 8100 V2 Series User Manual

Measurement of Reflectance

It is possible to carry out a reflectance measurement of a Fresnel for a reflective event.
Follow the following procedure to measure the reflectance:
1 Position the cursor A at the base of the peak
2 Position the cursor B at the top of the peak of the required Fresnel, or after the
peak to calculate automatically the maximum reflectance.
3 Press the
4 Press validation key
The Reflectance value is defined in dB, and displayed in the trace in purple.
Figure 52 Reflectance measurement

Splice measurements

There are two methods of carrying out manual measurements of splices on the trace:
the two-cursor method and the five-cursor method.
The five-cursor method is the more accurate, as it takes into account the difference of
level between the slope before the splice and the slope after the splice. This method
should be used whenever possible.
Advanced > Modify Meas. >
.
User Manual
Chapter 3 Reflectometry measurements
Advanced functions in Expert OTDR mode
Manual Meas., then select Reflec..
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