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Entry  Fri Aug 29 22:57:48 2008, Yoichi, Update, PSL, FSS loop transfer functions OPLTFs.pdfOPLTFsScaled.pdf
    Reply  Mon Sep 1 04:34:00 2008, rana, Update, PSL, FSS loop transfer functions n.pdfFSSLO.PNGFSSLO-Spec.pngPC25.pngpc.pdf
       Reply  Tue Sep 2 07:58:34 2008, rana, Summary, PSL, FSS & PMC LO trends for 2 years psl-lo-trend.png
Message ID: 909     Entry time: Tue Sep 2 07:58:34 2008     In reply to: 907
Author: rana 
Type: Summary 
Category: PSL 
Subject: FSS & PMC LO trends for 2 years 
The attached plot is a 2 year minute trend of the EPICS readback of the PMC & FSS LO Monitors (FSS_LODET & PMC_LODET).
Clearly the FSS LO has been dying for at least 2 years. The step up from 10 months
ago is probably when Rob removed a 3dB attenuator from in front of the box.
Attachment 1: psl-lo-trend.png  61 kB  Uploaded Tue Sep 2 09:02:02 2008  | Hide | Hide all
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