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  1. ft767.4
  2.  
  3. Some time ago, I read some requirement for help in order to interface
  4. a YEASU CAT SYSTEM to a Computer. 
  5.  
  6. Hereafter, what I'have done to drive an FT-767 with the RS232C of a
  7. computer.
  8.  
  9.  
  10.  DB25S (Computer side)                         DIN6 (TRCVR side)
  11.  
  12.                              /-----------------       3 SI
  13.   2 TD      -----/////-------
  14.                   10K        \   NPN 2N2484
  15.                                 V   ou equi.
  16.                                                               ___
  17.  
  18.   7 GND     ------KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK:95
  19.                              
  20.   3 RD      ---------------                 >-----//////------       2 SO
  21.   4 RTS  _                /       10K
  22.   5 CTS  _             V
  23.                             NPN 2N2484
  24.                   /      ___   ou equi.
  25.                   /
  26.                   / 10K
  27.                   /
  28.   6 DSR _           8 CD  ________ 20 DTR _
  29.  
  30. This is wired directly on the DB25S connectocTmto suit your needs.
  31. Remember to switch on the CAT first, and to switch it off at the end of
  32. your instructions, if you have to operate manualy the rig later on.
  33.  
  34. Good luck. JP
  35. 
  36. Downloaded From P-80 International Information Systems 304-744-2253
  37.