IviRFSigGen_ConfigurePulseModulationExternalPolarity
IviRFSigGenModulatePulse Capability Group
C Function Prototype
ViStatus IviRFSigGen_ConfigurePulseModulationExternalPolarity (ViSession vi, ViInt32 externalPolarity);
Purpose
This function specifies the polarity of the external source signal.
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession | The ViSession handle that you obtain from the IviRFSigGen_init or IviRFSigGen_InitWithOptions function. The handle identifies a particular instrument session. Default Value: None |
| externalPolarity | ViInt32 | Specifies the polarity of the external source signal. The driver uses this value to set the IVIRFSIGGEN_ATTR_PULSE_MODULATION_EXTERNAL_POLARITY attribute. Defined Values: IVIRFSIGGEN_VAL_PULSE_MODULATION_EXTERNAL_POLARITY_NORMAL - The signal generator modulates the carrier signal with normal pulse polarity. Increasing the positive pulse voltage level results in higher RF level. IVIRFSIGGEN_VAL_PULSE_MODULATION_EXTERNAL_POLARITY_INVERSE - The signal generator modulates the carrier signal with inverted pulse polarity. Increasing the positive pulse voltage level results in lower RF level. Default Value: IVIRFSIGGEN_VAL_PULSE_MODULATION_EXTERNAL_POLARITY_NORMAL |