[Elecraft] K3 KAT500 'Err AT3' recurring

[Don Wilhelm]

Bob,

Do you have the KAT3 (the 100 watt tuner) installed in your K3?  I 
believe that is the tuner that is being referred to and not the KAT500.

Look at the error codes listed at the back of the K3 manual for initial 
troubleshooting actions.

73,
Don W3FPR

On 12/19/2012 7:33 AM, KD7YZ Bob wrote:
> Howdy K3' people:
>
> I asked this one before. Apparently I never resolved it and I vcan't
> make it quit. So am asking again.
>
> Every time I power on the K3, I see the error 'ERR AT3'.
>
> 1. There is always power on the KAT500 before the K3 power is on
>
> 2. If I 'Tap' the "ATU TUNE" button the VFO-B line is "BYPASS"
>
> 3. Tap 'TUNE' button on KAT500 and some very brief clattering then
> KAT500 'AUTO' remains green-flashing endlessly until tapped again.
>
> This takes me to another question: When I actually do try to tune a
> frequency, I would like to press the "Dash" paddle on the Vibroplex in
> the old "Semi" mode where a hold on the Dash-Paddle produces an endless
> dash until the Opr lets up on the paddle ... however the Dot paddle
> produces endless dots .... my original Vibroplex, which I still have,
> was this way as there were no "Keyers" then.
>
> If that's not possible, then how do you hold-the-key-down to adjust for
> SWR?
>
> Tapping the old space-paddle very gingerly was my best way of
> ever-so-briefly seeing if anything was going to blow-up when I go
> key-down.
>
> Reaction time to push a radio "Key" or "XMIT" button is far, far, to
> slow to avoid major mishap .. sometimes anyway.
>
> tnx
>