The refreshed ALS didn't look so bad today (elog forthcoming), so I decided to give PRFPMI locking a shot tonight. I was able to hold the PRMI while swinging through resonsance, but transitions to RF signals failed. Demod angles / whitening gains/ etc. etc. all need to be rechecked
Some little things here and there that got cleaned up...
- The PRM oplev beam was being blocked. Why? I removed the block. Should recheck OLTF/spot size on QPD.
- ALS -> CARM, DARM signs changed, maybe because I've used the delayed beat as the RF input on the demod board, whereas I imagine it may have been the LO in the beatbox. No big deal.
- REFL165 whitening gain and input matrix updated. Should recheck demod angles.
- PRMI triggering settings weren't being set in the script. It's important to include arm transmission signals, since POP2F signals can momentarily dive when swinging through resonance.
- I should revisit phase tracker UGF normalization. I/Q amplitudes are varying quite a bit from lock to lock.
- PRC angular feedforward disabled for now; need to remeasure the witness/target data with DC coupled ITM oplevs
- I think there has been a little bit of MC servo tweaking since our last locks, may need to recheck AO TF / gains.
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