RFmx TDSCDMA CVI

RFmxTDSCDMA_SEMFetchLowerOffsetPowerArray

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

RFmxTDSCDMA_SEMFetchLowerOffsetPowerArray

int32 __stdcall RFmxTDSCDMA_SEMFetchLowerOffsetPowerArray (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64 absoluteIntegratedPower[], float64 relativeIntegratedPower[], float64 absolutePeakPower[], float64 peakFrequency[], float64 relativePeakPower[], int32 arraySize, int32* actualArraySize);

Purpose

Returns the arrays of lower offset segment power measurements.

Parameters

Input
Name Type Description
instrumentHandle niRFmxInstrHandle Specifies the instrument session. The RFmx driver obtains this parameter from the RFmxTDSCDMA_Initialize function.
selectorString char[] Specifies a selector string comprising of the signal name and result name. 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:
""
"signal::sig1"
"result::r1"
"signal::sig1/result::r1"
You can use the RFmxTDSCDMA_BuildSignalString 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.
arraySize int32 Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.
Output
Name Type Description
absoluteIntegratedPower float64[] Returns the array of lower (negative) offset segment powers measured. This value is expressed in dBm.
relativeIntegratedPower float64[] Returns the array of powers in each negative offset segment relative to the integrated power of the reference carrier. This value is expressed in dB.
absolutePeakPower float64[] Returns the array of peak powers measured in each lower (negative) offset segment. This value is expressed in dBm.
peakFrequency float64[] Returns the array of frequencies at which the peak power occurred in each offset segment. This value is expressed in Hz.
relativePeakPower float64[] Returns the array of peak powers in the lower (negative) offset segment relative to the integrated power of the reference carrier.
actualArraySize int32* Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0.

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