IviRFSigGen_ConfigureIQ
IviRFSigGenModulateIQ Capability Group
C Function Prototype
ViStatus IviRFSigGen_ConfigureIQ (ViSession vi, ViInt32 source, ViBoolean swapEnabled);
Purpose
This function configures the signal generator to apply IQ (vector) modulation to the RF output 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 |
| source | ViInt32 | Specifies the source of the signal that the signal generator uses for IQ modulation. The driver uses this value to set the IVIRFSIGGEN_ATTR_IQ_SOURCE attribute. Defined Values: IVIRFSIGGEN_VAL_IQ_SOURCE_DIGITAL_MODULATION_BASE - The signal generator uses the internally generated digital modulation signal to apply IQ modulation to the output RF signal. IVIRFSIGGEN_VAL_IQ_SOURCE_CDMA_BASE - The signal generator uses the internally generated CDMA signal to apply IQ modulation to the output RF signal. IVIRFSIGGEN_VAL_IQ_SOURCE_TDMA_BASE - The signal generator uses the internally generated TDMA signal to apply IQ modulation to the output RF signal. IVIRFSIGGEN_VAL_IQ_SOURCE_EXTERNAL - The signal generator uses data from an external source for IQ modulation. IVIRFSIGGEN_VAL_IQ_SOURCE_ARB_GENERATOR - The signal generator uses the internally generated Arb signal to apply IQ modulation to the output RF signal. Default Value: IVIRFSIGGEN_VAL_IQ_SOURCE_EXTERNAL |
| swapEnabled | ViBoolean | Enables the inverse phase rotation of the IQ signal by swapping the I and Q inputs. The driver uses this value to set the IVIRFSIGGEN_ATTR_IQ_SWAP_ENABLED attribute. Valid Values: VI_TRUE - The RF signal generator applies non-inverse phase rotation of the IQ signal. VI_FALSE - The RF signal generator applies inverse phase rotation of the IQ signal. Default Value: VI_FALSE |