KAT/KPA-500 Schematics

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KAT/KPA-500 Schematics

Tom Zeltwanger
Are schematics available for current Elecraft products? I do not see
them in the Manuals or after a quick search online. I am looking at
using a KAT/KPA-500 with a non-Elecraft rig. I want to make sure I
understand how the PTT/Key-line switching works. I know there are some
wiring diagrams in the manuals, but I am getting some conflicting
information from them.

If anyone has a setup using these with an IC-7600 or IC-7300, perhaps
you would be willing to share your connections (may want to do that
off-reflector).

73,

Tom, KG3V


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Re: KAT/KPA-500 Schematics

Michael Walker
Hi Tom

The files are around, as someone shared them with me just recently.

There should be no issues with the IC-7600 or the 7300.  You will need to
connect the RF keying line from the amp to the radio.  Check the manual on
each for the correct TX output.    It is pretty straightforward as all the
radio does is to pull a line to ground to put the amp into TX.   The Amp
will then bandsert in milliseconds.

I have not used the tuner, but others will comment.  I suspect it either
has a amp keying line or auto sense keying.

Mike va3mw


On Mon, Dec 24, 2018 at 8:27 AM Tom KG3V <[hidden email]> wrote:

> Are schematics available for current Elecraft products? I do not see
> them in the Manuals or after a quick search online. I am looking at
> using a KAT/KPA-500 with a non-Elecraft rig. I want to make sure I
> understand how the PTT/Key-line switching works. I know there are some
> wiring diagrams in the manuals, but I am getting some conflicting
> information from them.
>
> If anyone has a setup using these with an IC-7600 or IC-7300, perhaps
> you would be willing to share your connections (may want to do that
> off-reflector).
>
> 73,
>
> Tom, KG3V
>
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]
>
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Re: KAT/KPA-500 Schematics

wa2lbi@gmail.com
In reply to this post by Tom Zeltwanger
Tom,
I use the KAT500/KPA500 combination with an IC-7610.  The PTT line output from the '7610 goes to the KAT500 then to the KPA500.  That is so the KAT500 can prevent the KPA500 from keying during a tuning operation or if the KAT500 detects the SWR is too high.

Ken WA2LBI LG G6 

------ Original message------From: Tom KG3VDate: Mon, Dec 24, 2018 08:27To: [hidden email];Cc: Subject:[Elecraft] KAT/KPA-500 Schematics
Are schematics available for current Elecraft products? I do not see
them in the Manuals or after a quick search online. I am looking at
using a KAT/KPA-500 with a non-Elecraft rig. I want to make sure I
understand how the PTT/Key-line switching works. I know there are some
wiring diagrams in the manuals, but I am getting some conflicting
information from them.

If anyone has a setup using these with an IC-7600 or IC-7300, perhaps
you would be willing to share your connections (may want to do that
off-reflector).

73,

Tom, KG3V


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KAT/KPA-500 Schematics

ANDY DURBIN
In reply to this post by Tom Zeltwanger
"You will need to connect the RF keying line from the amp to the radio."

That is not what I did when using a TS-590 with KPA500 and KAT500.  I connected the TS-590 keying output to the KAT500 and then the KAT500 keying line to the KPA500.  This routing of the keying line is required since the KAT500 must be able to interrupt amp keying when changing its configuration or when high reflected power is detected.

My key line routing is actually a bit more complicated than that.  My path is TS-590 > SteppIR interface > LP-100A > KAT500 > KPA500.  They all have to agree it's ok to QRO before my KPA500 is keyed.  


Andy, k3wyc


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