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RFmxCDMA2k_CfgExternalAttenuation

RFmx CDMA2k 19.1 Help

Edition Date: October 2019

Part Number: 375473H-01

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RFmx CDMA2k 19.1 Help
RFmx CDMA2k 20.0 Help

int32 __stdcall RFmxCDMA2k_CfgExternalAttenuation (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 externalAttenuation);

Purpose

Specifies any external attenuation to be considered by RFmx CDMA2k measurements, such as the attenuation of a switch or cable connected to the signal analyzer RF IN connector.

Parameters

Input
Name Type Description
instrumentHandle niRFmxInstrHandle Specifies the instrument session. The RFmx driver obtains this parameter from the RFmxCDMA2k_Initialize function.
selectorString char[] Specifies a selector string comprising of the signal name. If you do not specify the signal name, the default signal instance is used.
Examples:
""
"signal::sig1"
You can use the RFmxCDMA2k_BuildSignalString function to build the selector string.
externalAttenuation float64 Specifies the attenuation of a switch or cable connected to the signal analyzer RF IN connector. 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.

Return Value

Name Type Description
status int32 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 RFmxCDMA2k_GetError function.

The general meaning of the status code is as follows:

Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

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