RFmxLteMXModAccResults.FetchSrsEvm Method
- Updated2024-07-17
- 2 minute(s) read
RFmxLteMXModAccResultsFetchSrsEvm Method
Fetches the mean RMS EVM and the mean power for the SRS channel.
Use "carrier(k)" or "subblock(n)/carrier(k)" as the selector string to read results from this method.
Use "carrier(k)" or "subblock(n)/carrier(k)" as the selector string to read results from this method.
Namespace: NationalInstruments.RFmx.LteMX
Assembly: NationalInstruments.RFmx.LteMX.Fx40 (in NationalInstruments.RFmx.LteMX.Fx40.dll) Version: 24.5.0.49283 (24.5.0.49283)
Syntax
public int FetchSrsEvm( string selectorString, double timeout, out double meanRmsSrsEvm, out double meanSrsPower )
Public Function FetchSrsEvm ( selectorString As String, timeout As Double, <OutAttribute> ByRef meanRmsSrsEvm As Double, <OutAttribute> ByRef meanSrsPower As Double ) As Integer
Parameters
- selectorString
- Type: SystemString
Specifies a selector string comprising of the result name, subblock number, and carrier number. If you do not specify the result name, the default result instance is used. Example:
"subblock0/carrier0"
"result::r1/subblock0/carrier0"
You can use the BuildCarrierString(String, Int32) method to build the selector string. - timeout
- Type: SystemDouble
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 method waits until the measurement is complete. - meanRmsSrsEvm
- Type: SystemDouble
Upon return, contains the mean value of RMS EVMs calculated on the SRS symbols over the slots specified by the SetMeasurementLength(String, Int32) method. When you set the SetEvmUnit(String, RFmxLteMXModAccEvmUnit) method to Percentage, the measurement is returned in percentage. When you set the ModAcc EVM Unit method to dB, the measurement is returned in dB. - meanSrsPower
- Type: SystemDouble
Upon return, contains the mean value of power calculated on SRS over the slots specified by the ModAcc Meas Length method. This value is expressed in dB.
Return Value
Type: Int32Returns the status code of this method. The status code either indicates success or describes a warning condition.