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Entry  Tue Aug 15 14:49:27 2017, Craig, awade, DailyProgress, PD, 35.5 MHz RFPDs Transfer Functions Aug-15-2017_143644_35p5MHz_RFPD_TFs.pdfRFPDTF_Setup.jpgRFPDTFs.tar.gz
    Reply  Wed Aug 16 12:51:21 2017, rana, DailyProgress, PD, 35.5 MHz RFPDs Transfer Functions 
       Reply  Wed Aug 16 13:50:26 2017, awade, DailyProgress, PD, 35.5 MHz RFPDs Transfer Functions 
          Reply  Thu Aug 17 00:01:00 2017, rana, DailyProgress, PD, 35.5 MHz RFPDs Transfer Functions 
Message ID: 1862     Entry time: Wed Aug 16 13:50:26 2017     In reply to: 1861     Reply to this: 1864
Author: awade 
Type: DailyProgress 
Category: PD 
Subject: 35.5 MHz RFPDs Transfer Functions 

The two PMCs craig measured are for the RefCav RFPDs.  I don't recall if we had a second 21.5 MHz resonant RFPD for the south path MC, I'll check again around the lab. If not we could lock one or both PMCs at 14.75 MHz using the PDs currently used for RefCav locking.

Point taken about the Q~10. So we're looking to ensure both circuits have a bandwidth of 3.5 MHz? Also it looks like the overall gain of the RFPD-B is 10 dB less than that of RFPD-A, I guess we should make these the same as well...

 

Craig: probably a good idea to zip and attach data with working plotting script to posts in addition to putting in shared syncing folder. Takes an extra minute, but worth it in 6 months when you can't work out which data goes with which post. Data has a half-life of 2 weeks sitting on your computer hard drive, after a while you won't remember what goes with what.

 

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