FetchEvm(string, double, out double, out double, out double, out double, out double, out double)
- Updated2025-10-13
- 1 minute(s) read
Returns the EVM value and related measurement values of the QEVM measurement.
Syntax
Namespace: NationalInstruments.RFmx.Cdma2kMX
public int FetchEvm(string selectorString, double timeout, out double meanRmsEvm, out double maximumPeakEvm, out double meanFrequencyError, out double meanMagnitudeError, out double meanPhaseError, out double meanChipRateError)
Parameters
| Name | Type | Description |
|---|---|---|
| selectorString | string | Specifies a selector string comprising of the result name. If you do not specify the result name, the default result instance is used. |
| timeout | double | 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. |
| meanRmsEvm | out double | Upon return, contains the mean averaged RMS EVM of the received signal. This value is expressed as a percentage. |
| maximumPeakEvm | out double | Upon return, contains the maximum peak EVM of the received signal. This value is expressed as a percentage. |
| meanFrequencyError | out double | Upon return, contains the mean averaged frequency error of the received signal. This value is expressed in Hz. |
| meanMagnitudeError | out double | Upon return, contains the mean averaged magnitude error of the received signal. This value is expressed as a percentage. |
| meanPhaseError | out double | Upon return, contains the mean averaged phase error of the received signal. This value is expressed in degrees. |
| meanChipRateError | out double | Upon return, contains the measured mean chip rate error of the received signal. This value is expressed in parts per million (ppm). |
Returns
Returns the status code of this method. The status code either indicates success or describes a warning condition.