EXFO PSO-200 Optical Modulation Analyzer - Manual (Page 63)

Viewing and Analyzing Results
Optical Modulation Analyzer 55
Displaying Multiple Bursts Simultaneously (Persistence)
Displaying Multiple Bursts Simultaneously
(Persistence)
With the Persistence mode, charts can display simultaneously the data of
up to 5 bursts (layers) to help identifying areas with a high number of
points. The “infinite” option accumulates the points from all bursts, which
is similar to the Color Grade mode but with a single color.
Note: Persistence is applied to all relevant graphs at once. It is not available when
Color Grade is enabled.
To set the persistence level:
1. From the Display menu, select Persistence.
2. Select the number of layers (1 to 5 or infinite). The default is 1, which
means no persistence.
Setting Number of Symbol Periods for Eye
Diagrams
You can display eye diagrams with 1 to 5 symbol periods.
To set the number of symbol periods:
1. From the Display menu, select Periods.
2. Select the number of periods (1 to 5).
2 periods 3 periods