Hi Erwin, You can't connect the COM port directly to the ACC port - you need a transistor in the middle to convert the high/low voltages to a "pull to ground". Interfaces like the ones described at:
http://www.dxlabsuite.com/dxlabwiki/FSKConnection would work. 73, ~iain / N6ML On Tue, Sep 20, 2011 at 3:42 PM, DK5EW <dk...@mmmonvhf.de> wrote: > Hello all, > I have a small problem with PTT via com port and ACC plug. > I made a 2 pin cable 9pol from PC to ACC 15pol to K3. > I soldered pin 4 for PTT and pin 5 for ground. > I tested it for correct wire and short - all O.K. > Now as soon I connect the TRX-ACC and the com port (serial 9 pin) to my > PC the K3 goes on TX. > Any solution out there ? > > -- > best regards > Erwin/DK5EW > > > > > ----- > eMail ist virenfrei. > Von AVG überprüft - www.avg.de > Version: 10.0.1410 / Virendatenbank: 1520/3907 - Ausgabedatum: 19.09.2011 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
