K3 - SteppIR - KPA500 interconnection

[David Bushinsky]

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

[w0mu]

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
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-SteppIR-KPA500-interconnection-tp7101153p7101153.html
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[David Bushinsky]

Thanks Mike

 

David

 

From: w0mu [via Elecraft] [mailto:[hidden email]]
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
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-SteppIR-KPA500-interconnection-tp7101153p7101153.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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