RFmxCDMA2k QEVM Fetch EVM VI
- Updated2025-10-13
- 3 minute(s) read
Returns the EVM value and related measurement values of the QEVM measurement.

Inputs/Outputs
Selector String
—
Selector String 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. The default value is "" (empty string). Examples: "" "signal::sig1" "result::r1" "signal::sig1/result::r1" You can use the RFmxCDMA2k Build Signal String VI to build the selector string.
Instrument Handle In
—
Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI.
Timeout (s)
—
Timeout 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 VI waits until the measurement is complete. The default value is 10.
error in (no error)
—
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
Mean Phase Error (deg)
—
Mean Phase Error returns the mean averaged phase error of the received signal. This value is expressed in degrees.
Mean Magnitude Error (%)
—
Mean Magnitude Error returns the mean averaged magnitude error of the received signal. This value is expressed as a percentage.
Instrument Handle Out
—
Instrument Handle Out passes a reference to your RFmx session to the next VI.
Mean RMS EVM (%)
—
Mean RMS EVM returns the mean averaged RMS EVM of the received signal. This value is expressed as a percentage.
Maximum Peak EVM (%)
—
Maximum Peak EVM returns the maximum peak EVM of the received signal. This value is expressed as a percentage.
Mean Frequency Error (Hz)
—
Mean Frequency Error returns the mean averaged frequency error of the received signal. This value is expressed in Hz.
error out
—
error out contains error information. This output provides standard error out functionality.
Mean Chip Rate Error (ppm)
—
Mean Chip Rate Error returns the measured mean chip rate error of the received signal. This value is expressed in parts per million (ppm). |
Selector String
—
Instrument Handle In
—
Timeout (s)
—
error in (no error)
—
Mean Phase Error (deg)
—
Instrument Handle Out
—
error out
—