Mind Monitor

Thank you for responding. I eliminated the 60 Hz spike by shutting off the power, but the 30 Hz spike remains (along with weaker harmonics above and below).

I purchased a used Muse (MU-02) and am trying to make sure it’s working properly. The signal looks a bit different from what I’m seeing others post on here. One thing I notice is a consistent spike of low frequency noise. Not sure if that’s the device or something else. The suggestion I had was that...