Chan Error Vector Magnitude (1xEV-DO) (Reverse Direction Only)
Chan 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. (%rms) is the Root Mean Square (RMS) of the error vectors computed and expressed as a percentage of the square root of the mean power of the ideal signal (see EVM, Magnitude and Phase Error data results (%rms)). To the right of the EVM value is the symbol with the largest (or Peak) EVM (% Pk) and its value.
The error vector is the magnitude of the vector, at the detected symbol location for the specified code channel, which connects the I/Q reference-signal phasor to the I/Q measured-signal phasor as shown in the following figure:
This data result only applies to reverse link direction signals.
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