Daniel plugged in the SR785 into the common mode board this morning. 

I've followed the instructions in 64204, and 67214 summarized here:

make sure the excitation A is enabled on the common mode board, the 785 is plugged in.

cd /ligo/gitcommon/psl_measurements/templates
conda activate /ligo/home/craig.cahillane/.conda/envs/psl
python ../code/SRmeasure.py carm_olg_template.yml

The plot options in the template don't work.

to find your data go to: /ligo/gitcommon/psl_measurements/data/carm_olg and try ls -lrtp to find the most recent file 

To make a plot:

python ../code/quick_tf_plot.py /ligo/gitcommon/psl_measurements/data/carm_olg/CARM_OLG_27-03-2024_131841.txt

The CARM olg right now is something like 17 kHz, consistent with 76448  but a little higher than 70920 and 65676 and 67584.  These all look fine according to the loop stability, but we could try reducing the CARM gain a bit to be more similar to O4a.

I reduced the gain by 3dB on both inputs 1 and 2, resulting in the second attachment.  I've lowered the gain setting in laser noise supression to 3dB from 6dB as well so that we will run like this.