EXFO IQS-12004B DWDM Passive Component Test System for IQS-500 - Manual (Page 361)

COM Objects Reference
DWDM Passive Component Test System 349
Analysis Interface—Methods
Analysis ClearRefExtTraces
Description This method removes all the initial (zero) traces used in the
calculation of an offset that can be applied to acquired traces
for periodic testing.
Syntax object.ClearRefExtTraces
Parameters None
Response None
Note This method lets you remove all previously set external
reference traces.
After clearing the zero traces, you can no longer use the
following methods: GetDriftTrace, GetCorrectedIlTrace.