RFmxLTE_CfgRf
- Updated2025-04-08
- 2 minute(s) read
Configures the RF attributes of the signal specified by the selector string.
Syntax
int32 __stdcall RFmxLTE_CfgRf(niRFmxInstrHandle instrumentHandle, char selectorString[], float64 centerFrequency, float64 referenceLevel, float64 externalAttenuation)
Parameters
| Name | Direction | Type | Description |
|---|---|---|---|
| instrumentHandle | [in] | niRFmxInstrHandle | This parameter specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr_Initialize function. |
| selectorString | [in] | char | This parameter specifies a Selector String comprising of the signal name. If you do not specify the signal name, the default signal instance is used. The default is "" (empty string). |
| centerFrequency | [in] | float64 | This parameter specifies the center frequency of the acquired RF signal for a single carrier. The parameter specifies the reference frequency of the subblock for intra-band carrier aggregation. The default value of this parameter is hardware dependent. |
| referenceLevel | [in] | float64 | This parameter specifies the reference level which represents the maximum expected power of the RF input signal. This value is configured in dBm for RF devices and as Vpk-pk for baseband devices. The default value of this parameter is hardware dependent. |
| externalAttenuation | [in] | float64 | This parameter specifies the attenuation of a switch or cable connected to the RF IN connector of the signal analyzer. This value is expressed in dB. For more information about attenuation, refer to the RF Attenuation and Signal Levels topic for your device in the NI RF Vector Signal Analyzers Help. The default value is 0. |
Returns
Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred.
To obtain a text description of the status code and additional information about the error condition, call the RFmxLTE_GetError function.
The general meaning of the status code is as follows:
Value | Meaning |
|---|---|
0 | Success |
Positive Values | Warnings |
Negative Values | Errors |