[Elecraft] K3 / P3 with SteppIR

[Eric Swartz - WA6HHQ, Elecraft]

Also, when a P3 is communicating with the K3, the RS-232 Y connection cable to 
the Steppir and computer should be used at the P3 computer connector, not at the 
K3. That will hide the internal P3-K3 data comms form the steppir controller.

Eric
elecraft.com

On 4/2/2014 2:50 PM, Larry Gerhardstein wrote:
> 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 <W7IN at 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
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>
>
>
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