FetchUplinkSymbolEvm(string, double, out double, out double, out double, out double, out double, out double, out double)
- Updated2025-10-13
- 2 minute(s) read
Fetches the modulation accuracy related measures for the configured measurement channel.
Syntax
Namespace: NationalInstruments.RFmx.EvdoMX
public int FetchUplinkSymbolEvm(string selectorString, double timeout, out double rmsSymbolEvm, out double peakSymbolEvm, out double rmsSymbolMagnitudeError, out double rmsSymbolPhaseError, out double meanSymbolPower, out double frequencyError, out double chipRateError)
Parameters
| Name | Type | Description |
|---|---|---|
| selectorString | string | Pass an empty string. The signal name that is passed when creating the signal configuration 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. |
| rmsSymbolEvm | out double | Upon return, contains the RMS ymbol EVM of the configured measurement channel. This value is expressed as a percentage. |
| peakSymbolEvm | out double | Upon return, contains the peak symbol EVM of the configured measurement channel. This value is expressed as a percentage. |
| rmsSymbolMagnitudeError | out double | Upon return, contains the RMS symbol magnitude error of the configured measurement channel. This value is expressed as a percentage. |
| rmsSymbolPhaseError | out double | Upon return, contains the RMS symbol phase error of the configured measurement channel. This value is expressed in degrees. |
| meanSymbolPower | out double | Upon return, contains the mean symbol power of the configured measurement channel. This value is expressed in dB or dBm. |
| frequencyError | out double | Upon return, contains the frequency error. This value is expressed in Hz. |
| chipRateError | out double | Upon return, contains the chip rate error. This value is expressed in ppm. |
Returns
Returns the status code of this method. The status code either indicates success or describes a warning condition.