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Entry  Thu Apr 28 06:46:30 2011, Suresh, Update, RF System, RF Source installed P4280064.JPG
    Reply  Thu Apr 28 15:31:36 2011, kiwamu, Update, IOO, MC PDH lock : readjustment of demodulation phase DSC_2975_ss.jpg
Message ID: 4582     Entry time: Thu Apr 28 15:31:36 2011     In reply to: 4578
Author: kiwamu 
Type: Update 
Category: IOO 
Subject: MC PDH lock : readjustment of demodulation phase 

Since Suresh has installed the RF source box and changed the cable configuration somewhat,

the demodulation phase for the MC locking became off by about 10 degree.

I changed the length of some cables and obtained a good demodulation phase by the same technique as Suresh and Koji did before (see here for detail).

I maximized the Q signal. The lock of the MC looks healthy.

DSC_2975_ss.jpg

Quote from #4578

RF Source box has been mounted in the 1X2 rack. 

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