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[aprssig] TNC-200 Assistance

Tim Cunningham tim_cunningham at mindspring.com
Mon Jan 1 03:37:12 UTC 2007

TNC-200 AssistanceRich,

You must replace the TheNet EPROM with a TAPR  EPROM, a Paccomm EPROM, or a KISS (JKISS) EPROM. The Paccomm EPROM v5.0 is still available from Pac-Comm at http://paccomm.com/

The KISS EPROM would work best if you plan to use the TNC with any of the APRS software programs.

TheNet is not going to work with many of the APRS software programs.


Tim - N8DEU
Huntsville, Alabama

  ----- Original Message ----- 
  From: Rich Schiller 
  To: 'TAPR APRS Mailing List' 
  Sent: Sunday, December 31, 2006 6:32 PM
  Subject: RE: [aprssig] TNC-200 Assistance

  I would like to thank all of the people that helped by giving advise.  Here is an update to the issue.

  I am running UI-View 32 V2.03 and I get no activity, (blinking lights or packets in the Monitor) in KISS mode.
  The only light that blinks is the DCD light, goes off when the squelch is broken.

  My port settings are as follows,
  Baud: 1200, also tried 9600
  Data Bits: 7
  Parity: Even
  Stop Bits 1

  I now receive mostly characters on the power cycles, but no other communication.  The characters are not always the same.

  The Key sequence, [<Alt> 192, Q, <Alt> 192] produces nothing in hyper-term in any variant, (all one line, each sequence separate, or without spaces and commas).

  Don;t know if this helps or not, but the serial number for the TNC is 27446.  There are also labels, handwritten, on some of the e-proms, they are as follows:

  State 1.09
  TheNet 2.11 st

  Rich Schiller - W4RSE
  W4RSE at earthlink.net

  I have recently acquired a used TNC-200 and I am unable to communicate between it and the computer.  When power is applied I get 5 lights on the front and while I am connected to the port with HyperTerminal all I get are "off the wall" characters, nothing legible, and no commands are accepted.

  I have matched the baud on the TNC to the baud on the port and vice versa, trying everything between 1200 and 9600 baud.

  I have tried using a null modem, to no avail. 

  Don't know if I am missing something, or just loosing my mind. 

  Any assistance is appreciated 

  Rich Schiller - W4RSE 
  W4RSE at earthlink.net 


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