Mag Err (GSM/EDGE/EDGE Evolution)

Mag Err displays the average magnitude error for all symbols in the burst. Magnitude error is the amplitude difference between the measured IQ signal and the reference IQ signal.

Mag Err is expressed as a percentage of the RMS average of the reference IQ points (IQ Meas Time and IQ Ref Time) in the demodulated Timeslot. Mag Err calculations include points in between symbols. This is only applicable to GMSK since GMSK is demodulated with 10 points per symbol, while all other formats are demodulated with one point per symbol.

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 symbol table also shows the symbol that has the largest magnitude error (peak magnitude error).

See Also

Available Summary Data

About Summary Table Data