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  1.  
  2. The GUS Programmer's Digest       Saturday, 13 May 1995       Volume 19 : Number 006
  3.  
  4. Today's Topics:
  5.     DC offset
  6.  
  7. Standard Info:
  8.     - Meta-info about the GUS can be found at the end of the Digest.
  9.     - Before you ask a question, please READ THE FAQ.
  10.  
  11. ----------------------------------------------------------------------
  12.  
  13. From: Ricky.Houghton@cs.cmu.edu
  14. Date: Fri, 12 May 1995 11:08:56 -0400 (EDT)
  15. Subject: DC offset
  16.  
  17. Our HPs 735s, with the 4231 chip, have the same problem, constant DC
  18. offset that is some function of the gain setting.  Analog Devices
  19. aknowledged that their counterparts have this problem.  I've not
  20. contacted Crystal for confirmation that it is a CODEC problem, but it
  21. sure seems that way.
  22.  
  23.  I'm not sure about the drift.  On the Analog Devices 1848, it was
  24. constant, I've not done enough with the 4231 to know.  If you are seeing
  25. drift to a null offset, when do you get the null offset?  Whenever you
  26. change gain?  I may be able to live with this.  That is, if I can set
  27. the gain and at some point in the near future have no offset.
  28.  
  29.  Ricky
  30.  
  31. ------------------------------
  32.  
  33. End of The GUS Programmer's Digest V19 #6
  34. *****************************************
  35.  
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  40.                        FTP Sites                     Archive Directories
  41.                        ---------                     -------------------
  42. Main N.American Site:  ftp.orst.edu                  pub/packages/gravis
  43.                        wuarchive.wustl.edu           systems/ibmpc/ultrasound
  44. Main Asian Site:       nctuccca.edu.tw               PC/ultrasound
  45. Main European Site:    src.doc.ic.ac.uk              packages/ultrasound
  46. Main Australian Site:  ftp.mpx.com.au                /ultrasound/general
  47.                                                      /ultrasound/submit
  48. South African Site:    ftp.sun.ac.za                 /pub/packages/ultrasound
  49. Submissions:           archive.epas.utoronto.ca      pub/pc/ultrasound/submit
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  53.                        ftp.st.nepean.uws.edu.au      pc/ultrasound
  54.                        ftp.luth.se                   pub/msdos/ultrasound
  55.  
  56.                        Gopher Sites                  Menu directory
  57.                        ------------                  --------------
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  59.  
  60.                        WWW Pages
  61.                        ---------
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  67.                        http://ftp.mpx.com.au/gravis.html
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  69. Mirrors:               http://www.st.nepean.uws.edu.au/pub/pc/ultrasound/
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