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Entry  Tue Mar 29 22:15:25 2011, tara, Notes, Electronics Equipment, RFPD bad connector rcavPD.pngacavPD.pngnoise_raw.pngRFPDnoise.png
    Reply  Wed Mar 30 20:23:58 2011, tara, Notes, Electronics Equipment, RFPD noise comparison D980454-00.pdfRFPDnoise.pngrfpd_psl.fil
       Reply  Thu Mar 31 19:37:54 2011, rana, Notes, Electronics Equipment, RFPD noise comparison 
          Reply  Fri Apr 1 02:18:13 2011, tara, Notes, Electronics Equipment, RFPD noise comparison 
Message ID: 561     Entry time: Fri Apr 1 02:18:13 2011     In reply to: 558
Author: tara 
Type: Notes 
Category: Electronics Equipment 
Subject: RFPD noise comparison 

Quote:

 Its basically OK, but you have to use 10 Ohms for the diode resistance instead of 90 Ohms. 

This version of RFPD is so old and bad, that we have to be a little careful - you have to measure the response with the Jenne laser to make sure its OK and tuned right. Because of the PD bias feedback, the capacitance can be mistuned for low or high light levels.

I suggest that you use Acrobat or Illustrator soon and mark up this PDF to reflect what you actually have in the box.

 I edited the entry. Now it looks ok.

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