Table 2.

Common mode rejection and root mean square noise level of the emEEG system’s six channels

Channel	CMRR (dB)	Channel input noise (μV RMS )
P10	83	0.40
F8	82	0.40
Fp1	84	0.40
Fp2	82	0.42
F7	82	0.41
P9	82	0.40
Average	83	0.41

The CMRR was computed at 50 Hz and the RMS noise was calculated over the 0.2 – 90 Hz frequency range.