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Message ID: 6229     Entry time: Thu Jan 26 19:28:02 2012
Author: kiwamu 
Type: Update 
Category: IOO 
Subject: PMC low transmission 

After I recovered the lock of PMC, I found that the PMC transmission was quite low. It was about 0.26 in the EPICS display.

I zeroed the PSL temperature feedback value which had been -2.3 and then the PMC transmission went back to a normal value of 0.83.

I believe it was because the PSL was running with two different oscillation modes due to the big temperature offset.

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