RFmxEVDO_ACPFetchOffsetMeasurement
- Updated2024-10-14
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RFmxEVDO_ACPFetchOffsetMeasurement
int32 __stdcall RFmxEVDO_ACPFetchOffsetMeasurement (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64* lowerRelativePower, float64* upperRelativePower, float64* lowerAbsolutePower, float64* upperAbsolutePower);
Purpose
Returns the absolute and relative powers measured in the offset channel. The relative powers are measured relative to the integrated power of the power reference carrier.
Use "offset<n>" as the selector string to read results from this function.
Parameters
| Input | ||
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Specifies the instrument session. The RFmx driver obtains this parameter from the RFmxEVDO_Initialize function. |
| selectorString | char[] | Specifies a selector string comprising of the signal name, result name, and offset number. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. Examples: "offset0" "signal::sig1/offset0" "result::r1/offset0" "signal::sig1/result::r1/offset0" You can use the RFmxEVDO_BuildOffsetString function to build the selector string. |
| timeout | float64 | Specifies the timeout for fetching the specified measurement. This value is expressed in seconds. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the function waits until the measurement is complete. |
| lowerRelativePower | float64* | Returns the lower offset channel power measured relative to the power of the carrier specified by the
RFMXEVDO_ATTR_ACP_OFFSET_POWER_REFERENCE_CARRIER attribute. This value is expressed in dB. |
| upperRelativePower | float64* | Returns the upper offset channel power measured relative to the power of the carrier specified by the
RFMXEVDO_ATTR_ACP_OFFSET_POWER_REFERENCE_CARRIER attribute. This value is expressed in dB. |
| lowerAbsolutePower | float64* | Returns the lower offset channel power. This value is expressed in dBm. |
| upperAbsolutePower | float64* | Returns the upper offset channel power. |
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 RFmxEVDO_GetError function. The general meaning of the status code is as follows:
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