I suspect that the problem is that you have two transmitters on the RS232 circuit. Maybe you can find some help in this similar situation.
<http://elecraft.365791.n2.nabble.com/K3-Edgeport-Adapter-with-K3-and-SteppIR-td4819889.html> David K0LUM On Apr 2, 2014, at 3:52 PM, Larry Gerhardstein <w...@montana.com> wrote: > I have a K3 / P3 / SteppIR SDA100. Everything is set to 38400 baud. I have > connected a Y-cable to the RS232 connection on the K3. One side of the Y is > connected to the SteppIR controller with a null modem inserted (as directed > by SteppIR instructions). The other side is connected to the XCVR connection > on the P3. Both work, but not at the same time. Unplugging one of the Y > connections makes the other work, and visa versa. Any ideas? Perhaps there > is a special & splitter that will provide the necessary isolation?? Or > perhaps I need to orient the Y a different way?? > > Larry W7IN > ______________________________________________________________ > 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 > Message delivered to radio...@mchsi.com ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
