J. Kissel

Another belated aLOG: I've measured the ETMY AI chassis this past Wednesday morning in an identical fashion as to how I'd measured ETMX in 18518. See attached set of plots, but more importantly fo use later, the data lives in 
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/PreER7/H1/Measurements/ElectronicsMeasurements/H1SUSETMY_L1_*.txt
which has been processed by 
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/PreER7/H1/Measurements/ElectronicsMeasurements/process_H1SUSETMY_AI_Measurements_20150520.m

As with ETMX, all relevant AI chassis channels on M0, L1, L2, and L3
- are fully functional,
- have a "DC" gain of 0.9902 +/- 0.0001 [V/V] gain (measured at 10 [Hz])
- have a notch frequency of 65838 +/- 277 [Hz]
- drop to 0.976 [V/V] in magnitude and lose 27 [deg] in phase (again no surprise).
These measurements will be used to inform the calibration model, as opposed to what we're currently using which had been the mean and std of several hundrend generic AI/AA filter boards that had been tested (and done so prior to the -v6 upgrade). That being said, there's very little difference between the two, so there will be little to no change.