Over the years I have built all of my interfaces. Started with optoisolators but when trying to go SO2V I couldn't make them work with the outputs paralleled. Now I have 2 db9 serial plug with a single 2n2222 & 1k resistor in each, outputs paralleled into a db15hd for the acc on the K3. PTT is via CAT. This is the simplest solution that I have found. I use I/O usb to serial converters with 4 or 8 ports. Enough to run everything on rs232. Only use usb for CAT and sound. This is the least number of cables and connections I have used, and I like how it works. Am really starting to regret selling the house and moving into an apartment building though.
On Sun, May 24, 2020, 08:45 Bill Gillenwater <[email protected]> wrote: > Thanks for the help on this. Found the problem. All working now. My eyes > don’t work like they used to. The PTT side of my home brew switching box > was not working. Re-solder and all good. > > 73 Bill K3SV > > Sent from my iPad > > > On May 24, 2020, at 6:54 AM, Ed W0YK <[email protected]> wrote: > > > > > > CAT and FSK/PTT must be on separate COM ports. > > > > 73, > > Ed W0YK > > > > > > -------- Original message -------- > > From: Nr4c <[email protected]> > > Date: 5/23/20 22:33 (GMT-08:00) > > To: [email protected] > > Cc: [email protected] > > Subject: Re: [Elecraft] RTTY Problems on K3 > > > > I think you need another program to make this work. It intercepts the > serial port for the FSK/PTT and makes it all work together. > > > > I use 2-Tone instead of myth and seem to get by with just it and n1mm. > > > > For interface I use my WINKEYER-USB with the latest firmware. I use a > “Y” adapter in the KEY line. The second line goes to K3/Acc2 FSK pin. > “Diddles” go to FSK and “Dit-Dahs” go to CW. works well. > > > > Sent from my iPhone > > ...nr4c. bill > > > > > > > On May 24, 2020, at 1:14 AM, "[email protected]" <[email protected]> wrote: > > > > > > I am fairly new to the K3 but have no problems setting up N1MM and > other software, getting things to work properly. My problem is I cannot get > RTTY to send/TX. I have made a homebrew interface with optoisolators for > both the FSK line and the PTT line. I'm going from a separate serial port, > pins 3 and 7, for FSK and PTT, to the Assy(15 pin) connector. To pins 1 for > FSK, 4 for PTT and 5 for ground. > > > > > > When I run MMTTY I cannot get the rig to key. If I switch to SSB or CW > and use the CAT line to work the PTT, no problem. If I switch to RTTY and > try to use the CAT line it will not key the TX. I've tried a variety of > setting in MMTTY and get no TX. I have a 1000MP set up with a similar > homebrew interface and have no issues. > > > > > > Can anyone shed some help on me? > > > > > > 73 Bill K3SV > > > > > > ______________________________________________________________ > > > 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 > > > Message delivered to [email protected] > > ______________________________________________________________ > > 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 > > Message delivered to [email protected] > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
