RFmxWCDMA_SEMFetchUpperOffsetPower
- Updated2024-10-14
- 2 minute(s) read
RFmxWCDMA_SEMFetchUpperOffsetPower
int32 __stdcall RFmxWCDMA_SEMFetchUpperOffsetPower (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64* absoluteIntegratedPower, float64* relativeIntegratedPower, float64* absolutePeakPower, float64* peakFrequency, float64* relativePeakPower);
Purpose
Fetches the integrated absolute and relative powers, absolute and relative peak powers, and the frequency at the absolute peak power of the upper offset segment for the SEM measurement. The relative power is relative to the total carrier power.
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 RFmxWCDMA_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. Example: "offset0" "signal::sig1/offset0" "result::r1/offset0" "signal::sig1/result::r1/offset0" You can use the RFmxWCDMA_BuildOffsetString function to build the selector string. |
| timeout | float64 | Specifies the timeout, in seconds, for fetching the specified measurement. 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. |
| Output | ||
| Name | Type | Description |
| absoluteIntegratedPower | float64* | Returns the power measured in the upper, or positive, offset segment. This value is expressed in dBm.
|
| relativeIntegratedPower | float64* | Returns the power measured in the upper, or positive, offset segment relative to the
RFMXWCDMA_ATTR_SEM_RESULTS_TOTAL_CARRIER_POWER attribute. This value is expressed in dB. |
| absolutePeakPower | float64* | Returns an array of peak power values measured in the lower, or negative, offset segments This value is expressed in dBm.
|
| peakFrequency | float64* | Returns the frequency corresponding to the upper offset segment peak power. This value is expressed in Hz.
|
| relativePeakPower | float64* | Returns the peak power measured in the upper, or positive, offset segment relative to the RFMXWCDMA_ATTR_SEM_RESULTS_TOTAL_CARRIER_POWER attribute. 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 RFmxWCDMA_GetError function. The general meaning of the status code is as follows:
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