[Elecraft] [K3]Computer interface & SteppIR

[Dick Dievendorff]

We're puzzling over this.

I read the SteppIR "Y" document to have only RxD and ground connected at the
K3 side of the "Y".  If that's the case, it's hard to understand how any
data transmitted from the SteppIR would influence the K3.  

If the SteppIR controller were wiggling the RxD, it might affect what the
computer sees.  But not what the K3 sees.

Are you sure that the SteppIR Y cable has only RxD connected at the K3 end?

I'm looking at http://www.steppir.com/files/Y%20-%20Cable.pdf as the diagram
for the SteppIR Y cable.

Dick, K6KR


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike
Sent: Wednesday, September 22, 2010 9:01 AM
To: elecraft at mailman.qth.net >> "elecraft at mailman.qth.net"
Subject: Re: [Elecraft] [K3]Computer interface & SteppIR

  Good point, Guy. Unfortunately, CONFIG:PTT-KEY is set to dtr-off.

The software isn't from SteppIR. It happens with any program which opens
that comm port.

Mike

On 9/22/2010 11:36 AM, Guy Olinger K2AV wrote:
> Toggling to transmit when programs initialize usually indicates that 
> CONFIG:PTT--KEY has the PTT portion set to DTR or RTS.  The same thing can
happen 
> with keying CW if the KEY portion is set to DTR or RTS.
>
> If that is set, the K3 has been instructed to cycle to TX on if anything
asserts 
> RTS or DTR, whichever one is specified. Try setting the PTT portion of
PTT--KEY to 
> OFF, and see if the TX cycling goes away.
>
> If the Steppir program is doing that as it initializes, and you need to
use PTT via 
> serial for something else you will need to take that up with Steppir.
>
> 73, Guy.
>
> On Wed, Sep 22, 2010 at 10:33 AM, Mike <nf4l at nf4l.com
<mailto:nf4l at nf4l.com>> wrote:
>
>      Just reloaded 4.05 and no help.
>
>     On 9/22/2010 10:20 AM, Mike wrote:
>     >    Something has recently gone sour in my station, and I'm not sure
where the
>     problem
>     > lies.
>     >
>     > I have a SteppIR controller hooked to the K3 with the "Wye" cable
SteppIR
>     provides.
>     >
>     > Turning on the controller causes the K3 to toggle to xmit 6 times.
>     > When the SteppIR controller is on, changing frequency on the K3
causes the
>     program
>     > (N1MM, Dx4Win, DxDevil) to freeze and the rig to stop responding.
>     >
>     > I've tried AUTOINF:nor and Auto 1.
>     >
>     > Is there any setting in the K3 that would upset what was a working
station? Maybe
>     > something in the latest firmware to accommodate the P3?
>     > The K3 utility seems to communicate OK, altho I haven't actually
tried a load.
>     >
>     > Win XP SP3.
>     >
>     > 73, Mike NF4L
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