RFmx TDSCDMA CVI

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RFmxTDSCDMA_CfgRFAttenuation

  • Updated2024-10-14
  • 1 minute(s) read

RFmxTDSCDMA_CfgRFAttenuation

int32 __stdcall RFmxTDSCDMA_CfgRFAttenuation (niRFmxInstrHandle instrumentHandle, char channelName[], int32 RFAttenuationAuto, float64 RFAttenuationValue);

Purpose

Configures the nominal attenuation and the RFmx driver setting.

This function is a wrapper over the RFmx Instruments API, and calls the RFmxInstr_CfgRFAttenuation function.

Parameters

Input
Name Type Description
instrumentHandle niRFmxInstrHandle Specifies the instrument session. The RFmx driver obtains this parameter from the RFmxTDSCDMA_Initialize function.
channelName char[] Set this parameter to "" (empty string) or NULL.
RFAttenuationAuto int32 Specifies whether the RFmx driver computes the RF attenuation.
RFMXTDSCDMA_VAL_RF_ATTENUATION_AUTO_FALSE(0)

Specifies that the RFmx driver uses the value configured using the RFAttenuationValue parameter.

RFMXTDSCDMA_VAL_RF_ATTENUATION_AUTO_TRUE(1)

Specifies that the RFmx driver computes the RF attenuation.

RFAttenuationValue float64 Specifies the nominal attenuation setting for all attenuators before the first mixer in the RF signal chain when you set the RFAttenuationAuto parameter to RFMXTDSCDMA_VAL_RF_ATTENUATION_AUTO_FALSE. This value is expressed in dB.

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 RFmxTDSCDMA_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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