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Reports until 09:58, Friday 28 April 2023
H1 CAL
evan.goetz@LIGO.ORG - posted 09:58, Friday 28 April 2023 (69143)
Changed/installed CALCS demod bandpass filters
J. Kissel, E. Goetz

We have changed and updated CALCS bandpass filters for LINE4, LINE10 so that they could read temporary CAL_AWG_LINES thermalization line (see LHO aLOG 68947) (24.5 Hz) and the X comparison line (410.2 Hz). In addition, we installed bandpass filters on the EXT DEMOD in the PCAL X and PCAL Y comparison demods:
CS_TDEP_PCAL_LINE4_ERR_DEMOD_SIG 0 butter("BandPass",6,24.45,24.55)
CS_TDEP_PCAL_LINE4_EXT_DEMOD_SIG 0 butter("BandPass",6,24.45,24.55)
CS_TDEP_PCAL_LINE4_PCAL_DEMOD_SIG 0 butter("BandPass",6,24.45,24.55)
CS_TDEP_PCAL_LINE10_ERR_DEMOD_SIG 0 butter("BandPass",6,410.17,410.23)
CS_TDEP_PCAL_LINE10_EXT_DEMOD_SIG 0 butter("BandPass",6,410.17,410.23)
CS_TDEP_PCAL_LINE10_PCAL_DEMOD_SIG 0 butter("BandPass",6,410.17,410.23)
CS_TDEP_PCAL_X_COMPARE_EXT_DEMOD_SIG 0 butter("BandPass",6,410.19,410.21)
CS_TDEP_PCAL_Y_COMPARE_EXT_DEMOD_SIG 0 butter("BandPass",6,410.29,410.31)

Also in the PCAL X and PCAL Y comparison demods, we installed the same 300 s low-pass filter to the EXT demod:
CS_TDEP_PCAL_X_COMPARE_EXT_DEMOD_I 0 butter("LowPass",4,0.0033)
CS_TDEP_PCAL_X_COMPARE_EXT_DEMOD_Q 0 butter("LowPass",4,0.0033)
CS_TDEP_PCAL_Y_COMPARE_EXT_DEMOD_I 0 butter("LowPass",4,0.0033)
CS_TDEP_PCAL_Y_COMPARE_EXT_DEMOD_Q 0 butter("LowPass",4,0.0033)
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