Specifies the pulse modulation type used for the phase and frequency error, and pulsed FM Measurement.

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 CW.

Remarks

The following table lists the characteristics of this property.

Short Name Pulse Modulation Type
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
CW 0

Continous wave where the frequency remains constant over pulse ON duration.
Linear FM 1

Frequency varies linearly within pulse ON duration.
Triangular FM 2

Frequency varies with two lienar FM chirps with opposite slopes within pulse ON duration.