Specifies the Thru calibration method when Calibration Method property is set to SOLT.

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 Thru Method
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
Auto 0

Measurement selects the appropriate Thru calibration method based on the value you specified for Calkit Type property. If Calkit Type is Electronic, then Delay Thru Using Defined Thru is selected. If Calkit Type is Mechanical, then Undefined Thru is selected.
Defined Thru 1

The Thru definition from calkit definition is used based on the value you specified for Calkit Type property. If Calkit Type is Electronic, the Thru definition from the electronic calkit EPROM is used. If Calkit Type is Mechanical, the Thru definition from the calkit definition file is used.
Flush Thru 2

Indicates a direct connection of the test ports when Calkit Type is Mechanical. The measured Thru is treated as flush Thru ignoring the Thru definition from the Calkit file. This method is not supported when Calkit Type is Electronic.
Undefined Thru 3

Indicates connection of a Thru without a stored definition when Calkit Type is Mechanical. The measured Thru is treated as unknown Thru ignoring the Thru definition from the Calkit file. If a delay is configured, the delay will be utilized for the calibration. This method is not supported when Calkit Type is Electronic.
vCal Thru as Unknown Thru 5

The Thru from the electronical Calkit is used for Thru measurement during calibration. The Thru definirion from vCal EPROM is used as a phase reference for the Thru characterization during calibration. This method is not supported when Calkit Type is Mechanical.