David, that probably is it. My Y-device shows ohm meter continuity on
all 9 pins. For the required isolation, at least one pin should show open.
Larry W7IN
On 4/2/2014 21:26, David Christ wrote:
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 <[email protected]> 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
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