Alexa, Sheila

We tried engaging the refl DC bias path with the 1.6Hz pole :40Hz zero engaged.  We were able to measure a tranfer function using 0dB on the CM in1 gain, and -80 in REfl DC bias, which has coherence to about 2Hz. (the UGF is around 3.5Hz).  We tried to push the gain up and engage the boost to get a better measurement, but now we seem to have an earthquake from Mexico tripping our ISIs, so we are done for the day.