IviRFSigGen_ConfigureFM
IviRFSigGenModulateFM Capability Group
C Function Prototype
ViStatus IviRFSigGen_ConfigureFM (ViSession vi, ViConstString source, ViReal64 deviation);
Purpose
This function configures the modulation deviation and modulation source for the signal generator's frequency modulation.
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 |
| source | ViConstString | Specifies the source of the signal that is used as the modulating signal. If more than one source is specified, the voltages of all sources (internal and external) are summed. Multiple source names are separated by commas. The driver uses this value to set the IVIRFSIGGEN_ATTR_FM_SOURCE attribute. Default Value: "" |
| deviation | ViReal64 | Specifies the extent of modulation (peak frequency deviation) the signal generator applies to the RF-signal (carrier waveform) with the modulating signal as a result of summing all sources, internal and external. The driver uses this value to set the IVIRFSIGGEN_ATTR_FM_DEVIATION attribute. Units: Hertz Default Value: 0.0 |