---------- Forwarded message ---------- From: iain macdonnell - N6ML <a...@dseven.org> Date: Tue, Aug 7, 2012 at 3:32 PM Subject: Re: [Elecraft] [K3] splitting RS232 output for 2 serial ports To: John Shadle <sha...@katzenfisch.com>
On Tue, Aug 7, 2012 at 3:27 PM, John Shadle <sha...@katzenfisch.com> wrote: > Thanks, Don. Are you talking about the "PTT IN" and "KEY OUT" RCA jacks? PTT and KEY (not KEY OUT - that's for your amplifier), > I Googled "one transistor keying circuit" and it came back with some > amplifier keying circuits. Is that what I should be looking for, or > something else? I'm sure the answer is obvious, but I'm just having a > hard time seeing it. ;-) Example circuits at http://www.dxlabsuite.com/dxlabwiki/CWConnection If you want to use PTT (instead of VOX/QSK), you'll need two of those circuits. 73, ~iain / N6ML > On Tue, Aug 7, 2012 at 6:20 PM, Don Wilhelm <w3...@embarqmail.com> wrote: >> John, >> >> I would suggest that you use the "one transistor keying circuit" (Google and >> you will find many sources) for the keying and PTT. Connect the output of >> the one transistor keyer to the K3 rear panel keying input and PTT input. >> >> You will still have the problem that the computer will activate those >> signals when the computer boots, so boot the computer and than turn on the >> K3 - or take other common sense precautions like switching the K3 to a dummy >> load during computer boot times. >> >> 73, >> Don W3FPR >> >> >> On 8/7/2012 5:38 PM, John Shadle wrote: >>> >>> Hi all, >>> I'm trying to accomplish keying with my K3 using the RS232 port and a >>> COM port on my desktop computer. >>> >>> I currently use the RS232 for station logging to provide frequency, >>> mode, etc. information and for rig control (e.g., click on a spot and >>> then the radio changes frequency/mode). Unfortunately, the program I >>> use (AC Log by N3FJP) does not allow you to choose the same COM port >>> for both rig control and CW keying. >>> >>> My question is whether or not I could use a splitter of some type (at >>> the K3) to go to 2 separate ports (e.g., COM 1 and COM 2), then use >>> COM 1 for rig control and COM 2 for keying. Has anyone else done this? >>> Is this acceptable practice? >>> >>> Thanks! >>> -john W4PAH >>> Madison, WI >>> ______________________________________________________________ >>> 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 ______________________________________________________________ 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
