FetchOffsetEvm(string, double, out double, out double, out double, out double)
- Updated2025-04-08
- 1 minute(s) read
Fetches the offset error vector magnitude (EVM).
Syntax
Namespace: NationalInstruments.RFmx.DemodMX
public int FetchOffsetEvm(string selectorString, double timeout, out double meanRmsOffsetEvm, out double maximumRmsOffsetEvm, out double maximumPeakOffsetEvm, out double meanPeakOffsetEvm)
Remarks
This method maps to the RFmxDemod_DDemodFetchOffsetEVM() function in C.
Parameters
| Name | Type | Description |
|---|---|---|
| selectorString | string | Specifies the result name. Example: "", "result::r1". You can use the BuildResultString(string) method to build the selectorString. |
| timeout | double | Specifies the time, in seconds, for which the method waits for the measurement to complete. A value of -1 specifies that the method waits until the measurement is complete. |
| meanRmsOffsetEvm | out double | Upon return, contains the mean of the RMS EVM, measured per acquisition, after removing the offset between the I and Q channels of offset quadrature PSK (OQPSK) demodulated signal. |
| maximumRmsOffsetEvm | out double | Upon return, contains the maximum of the RMS EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal. |
| maximumPeakOffsetEvm | out double | Upon return, contains the maximum of the peak EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal. |
| meanPeakOffsetEvm | out double | Upon return, contains the mean of the peak EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal. |
Returns
Returns the status code of this method. The status code either indicates success or describes a warning condition.