Specifies the definition to use for thresholding acquired and reference waveform.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals.

The default value is Reference Power Type.

Remarks

The following table lists the characteristics of this property.

Short Name AMPM Threshold Definition
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
Input AND Output 0

Corresponding acquired and reference waveform samples are used for AMPM measurement when both samples are greater or equal to the threshold level.
Reference Power Type 1

Corresponding acquired and reference waveform samples are used for AMPM measurement when reference waveform sample is greater than or equal to the threshold level and AMPM Ref Pwr Type property is set to Input. Corresponding acquired and reference waveform samples are used for AMPM measurement when acquired waveform sample is greater than or equal to the threshold level and AMPM Ref Pwr Type property is set to Output.