IviRFSigGen_ConfigureALC
IviRFSigGenALC Capability Group
C Function Prototype
ViStatus IviRFSigGen_ConfigureALC (ViSession vi, ViInt32 source, ViReal64 bandwidth);
Purpose
This function configures the ALC (Automatic Level Control) of the signal generator's RF output.
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 controlling voltage for the Automatic Level Control. The RF level at the sensor point is held constant. The driver uses this value to set the IVIRFSIGGEN_ATTR_ALC_SOURCE attribute. Defined Values: IVIRFSIGGEN_VAL_ALC_SOURCE_INTERNAL - The ALC is controlled by an internal measurement source. IVIRFSIGGEN_VAL_ALC_SOURCE_EXTERNAL - The ALC is controlled by an external voltage. Default Value: IVIRFSIGGEN_VAL_ALC_SOURCE_INTERNAL |
| bandwidth | ViReal64 | Specifies the bandwidth of Automatic Level Control (ALC). Narrow bandwidth impoves noise and allows AM with modulation frequencies beyond bandwidth frequency. The value is coerced to reflect the ability of the current RF signal generator. The driver uses this value to set the IVIRFSIGGEN_ATTR_ALC_BANDWIDTH attribute. Units: Hertz Default Value: 0.0 |