Naoki, Sheila

We tried to move the SRCL digital offset to see if we can reduce the frequency dependence of the squeezing angle.  We roughly reproduced similar results to 68814 where Vicky And Elenna did the same test.  We think that this method won't be helpful for tuning the SRCL offset to reduce the much smaller frequency dependence of the sqz angle we see in 74256

ref 0: FDS, SRCL offset -175, CLF6 demod phase 189.49 (observing configuration)
ref1: FIS, SRCL offset -175, CLF6 demod phase 189.49
ref2: FIS, SRCL offset -185, CLF6 demod phase 189.49
ref3: FIS, SRCL offset -200, CLF6 198.03
ref4: FIS, SRCL offset -100, CLF6 180
ref5: FIS, SRCL offset +100, CLF6 117.98