I've made some plots of the currently loaded filters on ITMX BSC-ISI
I used the program plot_current_blend_filters.m from /ligo/svncommon/SeiSVN/seismic/BSC-ISI/Common/
which reads the foton file and plots out the filters (thank you Ryan)
I only plotted out the low pass filters assuming that the high pass filters are appropriately complementary
A few comments
A filter name that starts with "T" means that the T240 will be part of the blend
LP filters that go flat at high frequencies are not recommended, so for instance the Stage 1 X 40mHz and T100mHz N0.44 are bad filters and will get replaced
The "best" we have been using the TCrappy filters which are what the blend filters are tuned to
Stage 1 RX TCrappy == TLLO
Z = X = Y
RX = RY = RZ
Thanks, Rich. Another comment: the "750 mHz" filters currently loaded don't provide enough filtering. They must be replaced by a better version, as shown page 22 of https://dcc.ligo.org/DocDB/0111/T1400008/002/T1400008%20List%20of%20SEI%20Complementary%20Filters.pdf The better version is in: HAM-ISI/Common/Complementary_Filters_HAM_ISI/HAM_no_HEPI_Comp_Filters_Stage12_750mHz_2012_10_02.mat These filters will soon be renamed and stored in a upper level common folder (not HAM specific). More generally, we are working on standardizing what can be, and defining how and where the .mat structures should be stored in the svn.