Specifies the gain reference for compression point calculation.

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 Auto.

Remarks

The following table lists the characteristics of this property.

Short Name AMPM Compression Point Gain Ref
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
Auto 0

Measurement computes the gain reference to be used for compression point calculation. The computed gain reference is also returned as AMPM Results Mean Linear Gain result.
Reference Power 1

Measurement uses the gain corresponding to the reference power that you specify for the AMPM Compression Point Gain Ref Pwr property as gain reference. The reference power can be configured as either input or output power based on the value of the AMPM Ref Pwr Type property.
Max Gain 2

Measurement uses the maximum gain as gain reference for compression point calculation.
User Defined 3

Measurement uses the gain that you specify for the AMPM Compression Point User Gain property as gain reference for compression point calculation.