J. Kissel I've taken the calibration measurement suite that shall be representative of post-winter break. Analysis to come, data files listed below. Sensing Function Measurements: /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Measurements/SensingFunctionTFs/ Swept Sine: 2017-01-03_H1DARM_OLGTF_4to1200Hz_25min.xml 2017-01-03_H1_PCAL2DARMTF_4to1200Hz_8min.xml Broadband: 2017-01-03_H1_PCAL2DARMTF_BB_5to1000Hz.xml Actuation Function Measurements: /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Measurements/FullIFOActuatorTFs/2017-01-03/ UIM: 2017-01-03_H1SUSETMY_L1_iEXC2DARM_25min.xml 2017-01-03_H1SUSETMY_L1_PCAL2DARM_8min.xml PUM: 2017-01-03_H1SUSETMY_L2_iEXC2DARM_17min.xml 2017-01-03_H1SUSETMY_L2_PCAL2DARM_8min.xml TST: 2017-01-03_H1SUSETMY_L3_iEXC2DARM_8min.xml 2017-01-03_H1SUSETMY_L3_PCAL2DARM_8min.xml Note that this includes the new/better L2/L3 crossover design re-installed earlier today (see LHO aLOG 32933), both in ETMY itself and in the CAL-CS replica that forms DELTAL_EXTERNAL_DQ. The mean data points for ratio of PCAL to DELTL_EXTERNAL (which should be unity if we've calibrated the data correctly), show a ~10%, frequency-dependent deviation, worst at ~200 Hz. We'll have to wait until time-dependent parameters are corrected for before deciding if anything is really "wrong" or incorrect. We know that we will have to adjust the actuation strength and sensing gain by a scalar ~1% because of mistakenly over counting the gain of the analog anti-imaging and anti-aliasing filters (see LHO aLOG 32907), but this won't be the majority of the discrepancy.