[Elecraft] Digital Mode Interface for the KX3 for WSJT modes

[Don Wilhelm]

Thanks, yes that is the one that produces the PTT from the audio stream.
I note that Skip no longer has kits and boards, but he has supplied a 
complete parts list and the circuit is simple enough to wire on 
perfboard.  The photos provide a nice layout guide.

Contrary to K9YC's statements, I believe the transformers are necessary 
for use with a laptop.
Jim's "bond everything together" is a great solution (and it works) for 
the home station using a desktop computer, but bonding the computer 
becomes more difficult when using laptops with all plastic cases.  I 
cannot find a good place to connect to the computer ground of my IBM 
Thinkpad.unless it just happens to be the jackscrews on the VGA 
connector - but those are there to prevent connector pullout, and may or 
may not be grounded.  (I use a desktop at the home station).

73,
Don W3FPR

On 7/12/2012 4:51 PM, Holger Schurig wrote:
> https://sites.google.com/site/kh6tyinterface/
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