[Elecraft] Auto ATU for K3 + Amplifier

Ken K3IU kenk3iu at cox.net
Sat Mar 15 09:13:57 EST 2008


Hi Mike:

If you don't have the KAT3 installed, I don't think that tapping the 
"ATU TUNE" button is not gonna do anything for you. However, just to the 
left of that is the XMIT/TUNE button. In the menu system you can specify 
the amount of power that will be produced when you press/hold TUNE. A 
PTT logic output is available in a couple of places on the back (Key Out 
and in the ACC connector) of the rig which you could use to "trigger" a 
tune line of your making.

73,
Ken K3IU

AD6XY - Mike wrote:
> 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
>   


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