Overlay Trace Function; Overlaying Several Traces Stored In Memory; Overlaying The Current Trace - Viavi 8100 V2 Series User Manual

Portable, modular platform designed for the construction, validation and maintenance of optical fiber networks

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Chapter 12 High Resolution OSA Measurement

Overlay trace function

This very useful function enables up to eight traces to be displayed on the screen at

either to compare traces acquired on a number of different fibers in the same

or to observe changes over time in traces taken of one and the same fiber.

or to compare both curves get for each way of propagation in the origin/end

For this purpose, the Platform 8000 possesses an overlay memory which can store:

the current trace, for comparison with further traces to be acquired subsequently,

or traces previously saved, for comparison with the current trace,

To display two traces from the memory, deleting the current trace or traces already

Select the files of the traces for display.

Press View trace(s) or

When loading is complete, the

the active trace, the other trace being overlaid.

To copy the current trace into the overlay memory, proceed as follows:

On the Results page, press the Advanced key, then Overlay.

Press Set New Trace soft key.

The current trace is copied into the overlay memory: represented in a different

color, it is automatically offset with respect to new trace.

A new acquisition can then be started.

Menu/Explorer

key, select Explorer.

Load traces +

screen appears: the first trace selected is

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