Chan Mag Err (cdma2000/1xEV-DV)
Chan Mag Err (Magnitude Error) is the difference in amplitude between the I/Q measured signal and the I/Q reference signal for the specified Despread and .
The display shows these Magnitude error values; the RMS (root mean square) Magnitude Error, the Peak (largest) Magnitude Error, and the symbol number with the Peak Magnitude Error.
Magnitude error is an indicator of the quality of the amplitude component of the modulated signal. For example: a very high magnitude error might indicate high incidental AM Amplitude Modulation - CW modulation using amplitude variation in proportion to the amplitude of the modulating signal. Usually taken as DSB-LC for commercial broadcast transmissions and DSB-SC for multiplexed systems. modulation on the signal.
The description of Error-vector magnitude (EVM)includes a pictorial diagram that shows how Magnitude Error is derived.
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