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Entry  Sat Sep 10 14:55:28 2011, Keiko, Update, LSC, 3f demodulation board check 
    Reply  Sat Sep 10 16:10:42 2011, Keiko, Update, LSC, 3f demodulation board check REFL33-input-filter.png
       Reply  Sat Sep 10 18:57:52 2011, Keiko, Update, LSC, 3f demodulation board check 
          Reply  Sun Sep 11 15:19:39 2011, kiwamu, Update, LSC, phase delay in RF signals 
       Reply  Sun Sep 11 22:36:32 2011, Keiko, Update, LSC, 3f demodulation board check REFL33.pngREFL165.png
          Reply  Mon Sep 12 13:24:07 2011, Keiko, Update, LSC, 3f demodulation board check 
             Reply  Mon Sep 12 16:27:01 2011, Keiko, Update, LSC, 3f demodulation board check 
                Reply  Mon Sep 12 18:40:35 2011, Keiko, Update, LSC, 3f demodulation board check 
                   Reply  Tue Sep 13 15:00:25 2011, Keiko, Update, LSC, 3f demodulation board check WF33.pdfWF165.pdf
                      Reply  Tue Sep 13 23:08:51 2011, Keiko, Update, LSC, 3f demodulation board check REFL33-modified.pngREFL165-modified.png
                         Reply  Thu Sep 15 01:06:20 2011, Keiko, Update, LSC, 3f demodulation board check 
                            Reply  Fri Sep 16 21:26:12 2011, Keiko, Update, LSC, 3f demodulation board check 
Message ID: 5387     Entry time: Mon Sep 12 16:27:01 2011     In reply to: 5386     Reply to this: 5388
Author: Keiko 
Type: Update 
Category: LSC 
Subject: 3f demodulation board check 

Wait. I am checking the whitening filters of the 33 and 165 demodulation boards.

Also, LSC-REFL33-I-IN1(IN2, OUT) and LSC-REFL165-Q-IN1(IN2,OUT) channels may not be working??

 

Quote:

I also quickly checked the orthogonality of the demodulation board for REFL33 and REFL165 using function generators and oscilloscope. I checked the frequencies at 1,10,100,1K,10KHz of the demodulated signals. They are fine and ready for 3f signal extraction.

 

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