[Elecraft] Auto ATU for K3 + Amplifier

Robert Tellefsen n6wg at comcast.net
Sat Mar 15 13:15:22 EST 2008


Here is something for you to check.  May work,
may not.

The K2 has provision for a keying output closure
to key amps and such.  The K3 does also.
Check to see if it is providing its closure during
TUNE as well as during TX.  That might give you
the closure you need to stir your ATU to action.

Good luck and 73
Bob N6WG

----- Original Message -----
From: "AD6XY - Mike" <m.j.willis at rl.ac.uk>
To: <elecraft at mailman.qth.net>
Sent: Saturday, March 15, 2008 5:49 AM
Subject: Re: [Elecraft] Auto ATU for K3 + Amplifier


>
>
> Thanks for the responses so far. I am currently using a Z11 auto
tuner at
> 10W.
>
> Can anyone help me with a configuration setting? What I would like
to happen
> is for something useful to happen when I press the ATU Tune button
on the
> K3. What it should do is provide a low power signal and toggle a
tune line.
> So far all I can get it to do it tell me the KAT3 is not installed,
which I
> know already.
>
> Having lived with my K3 for almost 24 hours, I find one of the major
design
> flaws in the K3 is the lack of antenna outputs for those of us who
don't
> need an ATU built in. for HF only it is understandable, but it is
crazy
> considering the rig does 6m.  The ANT button appears redundant, I am
sure we
> could have a PCB with two or 3 RF connectors and a relay or two. I
am not
> sure I really like the way the SO239 is connected - but I suppose it
is only
> HF... Operating without the right side panel (don't ask) the wire
loop
> certainly picks up lots of local noise from my PC and monitor.
>
> Mike
> --
> View this message in context:
http://www.nabble.com/Auto-ATU-for-K3-%2B-Amplifier-tp16048136p1606781
1.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
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