RFmx EV-DO ModAcc measurements calculate the following performance metrics:

• Rho—Returns the normalized correlation coefficient of the measured signal and the generated reference signal.
• RMS EVM—Returns the RMS of the normalized EVM for the analyzed signal.
• Peak EVM—Returns the peak normalized EVM observed within the measurement interval for the analyzed signal.
• Peak CDE—Returns the maximum value among the code domain errors (CDEs), averaged over all the measured slots for the analyzed signal.
• Peak Active CDE—Returns the peak value of all CDEs of the active channels, averaged over all the measured slots for the analyzed signal.
• Frequency Error—Returns the frequency error averaged over all measured slots for the analyzed signal.
• Chip Rate Error—Returns the chip rate error for the analyzed signal.

Additionally, RFmx EV-DO ModAcc measurements also calculate the following I/Q impairments :

• I/Q Origin Offset —Returns the DC Offset of the I/Q samples from the origin.
• I/Q Gain Imbalance —Returns the I/Q gain imbalance between the in-phase and quadrature components within the complex baseband signal.
• I/Q Quadrature Error—Returns the phase difference from the ideal value of 90 degrees between the in-phase and quadrature component within the complex baseband signal.