# Status of the PMC lock after the recovery of the proper injection lock condition (43966)

PDH_gain margin = 23 dB
PDH_offset = -100 mV
PDH_pp = 2.45 V pp
RF_Att  = 20 dB
PMC_REFL_DC = 3.4 V (unlocked)
data @ 16h02 LT
we deduce S_PZT ~ 36 MHz/V
see plot for the PDH scan

Rem.: the PDH used to be 2.0 V pp with 9 dB RF_ATT and REFL_DC ~ 2 V (see 40825)
Rem.: that is an increase of the PDH of (2.45/3.4*11dB)/ (2/2) = x 2.48

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# Freq-to-RIN coupling

it becomes possible to anneal the Freq-to-RIN coupling using an offset of -0.2 V on the rampauto perturb input.
It seems this has been attempted in the past weeks with no success (to beat the SSFS_boost correction which couples to PMC_TRA)