RS EVM (NB-IoT)
shows the Root Mean Square (RMS) average of the reference signal (NRS for downlink, NPUSCH-DMRS for uplink) error vector magnitudes for all symbol-times in the Measurement Interval. The value is displayed in units of %rms.
EVM Error vector magnitude (EVM): A quality metric in digital communication systems. See the EVM metric in the Error Summary Table topic in each demodulator for more information on how EVM is calculated for that modulation format. can also be shown in units of dB by selecting the Report EVM in dB parameter.
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