[Elecraft] K3 - SteppIR - KPA500 interconnection

[David Bushinsky]

Thanks Mike

David

From: w0mu [via Elecraft] [mailto:ml-node+s365791n7101511h86 at n2.nabble.com]
Sent: Friday, December 16, 2011 11:42 AM
To: Bushinsky, David
Subject: Re: K3 - SteppIR - KPA500 interconnection

That is exactly how the tuning relay works.  It interrupts the ptt line
so the amp cannot key while the SteppIR is moving.  N8LP also makes a
box for those that do not have the new controller that will do the same
thing.

Mike W0MU

W0MU-1 CC Cluster w0mu.net


On 12/16/2011 9:33 AM, David Bushinsky wrote:

> Goal is to not allow the KPA500 to transmit until the SteppIR controller has
> finished tuning.
>
> The SteppIR controller, with the tuning relay option, has a stereo plug
> input, the K3 and KPA500 both have RCA plug inputs.  My thought is to get a
> shielded audio cable with a stereo plug and two RCA plugs (common cable to
> power an audio system from an ipod).  One RCA plug into the K3 PTT, one RCA
> plug into the KPA500 and the stereo plug into the SteppIR controller.  Once
> the SteppIR has finished tuning it will close the connection on the PTT line
> allowing the KPA500 to transmit.
>
> I think it should work but have yet to try it.  Thoughts?
>
> David W2PD
>
>
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