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/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
