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Reports until 22:06, Tuesday 02 September 2014
H1 ISC
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kiwamu.izumi@LIGO.ORG -
posted 22:06, Tuesday 02 September 2014
(13726)
SRY locking
Sheila, Kiwamu
Locked SRY by misaligning PRM and ITMX.
Used ASAIR_A_RF45_Q with the whitening gain of 18 dB and two whitening stages engaged.
Copied LSC-PRCL filters to LSC-SRCL filters.
Copied PRM and PR2 locking filters over to SRM and SR2 respectively.
LSC_SRCL_GAIN = 300 to lock the carrier with a UGF of about 5 Hz.
Put a notch in SRM because we tended to ring up a vertical mode of SRM at 27.46 Hz. This is partly why the UGF is so low.
Still in the process of checking the cross-over and so on.
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