Addrefextzerotrace – EXFO IQS-12004B DWDM Passive Component Test System for IQS-500 User Manual
Page 360
COM Objects Reference
348
IQS-12004B
Analysis Interface—Methods
Analysis
AddRefExtZeroTrace
Description
This method adds an initial (zero) trace for the calculation of an
offset that can be applied to acquired traces for periodic testing.
Syntax
object.AddRefExtZeroTrace (Trace)
Parameters
Trace: Required. A Variant value containing a two-dimensional
array representing pairs of X,Y coordinates of the trace to set.
Response
None.
Note
This method lets you specify which traces will serve as the zero
traces to calculate an offset that can be applied to acquired
traces during periodic tests. This trace should be the acquisition
result of an external reference patchcord used as a reference
device. There should be as many zero traces as there are
external reference patchcords connected to the setup.
This offset may be used to compensate intrinsic deviation of the
system, mainly caused by the repeatability of the switch.
Use this method in conjunction with the following methods:
AddRefExtTrace, GetDriftTrace, GetCorrectedIlTrace.
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