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Reports until 22:10, Wednesday 23 January 2013
H1 ISC
lisa.barsotti@LIGO.ORG - posted 22:10, Wednesday 23 January 2013 - last comment - 12:10, Thursday 24 January 2013(5237)
IMC is locked again 
All

The repaired LSC RFPD has been re-installed on IOT2, and we could relock the IMC easily. We measured the OLTF of the fast loop: we have a 60 kHz UGF and 40 degrees of phase margin (measured with the  730 kHz notch ). Details will follow.
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lisa.barsotti@LIGO.ORG - 12:10, Thursday 24 January 2013 (5244)
Link 

The first picture shows a comparison of the OLTF with and without the notch. At 60 kHz we lose 7 degrees of phase with the notch in.  The second picture shows where the notch box is, and the third picture shows the MEDM screens with the standard gain settings.
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Displaying report 1-1 of 1.