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Reports until 17:26, Tuesday 02 December 2025
H1 PEM (CDS)
oli.patane@LIGO.ORG - posted 17:26, Tuesday 02 December 2025 - last comment - 10:22, Thursday 11 December 2025(88320)
Added DAC calibration filters for PEM EX

h1pemex was upgraded from an 18-bit to a 20-bit DAC today, so we needed to make sure we had a calibration correction. The new filter banks that Jeff had put in (88321) for the calibration correction are called H1:PEMEX_EX_DACOUTF_1, H1:PEMEX_EX_DACOUTF_2, H1:PEMEX_EX_DACOUTF_3, and H1:PEMEX_EX_DACOUTF_4. I installed a filter called 20BitDAC that was a gain(4) in FM10 of each of these filter banks, loaded them in, and turned them on along with the input/output/gain of the filter banks. I've accepted these changes in sdf safe

Comments related to this report
oli.patane@LIGO.ORG - 10:22, Thursday 11 December 2025 (88479)

Late update, but I put the channel names wrong. The new channels are called H1:PEM-EX_DACOUTF_{1,2,3,4}.

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