[Elecraft] K3 KAT500 'Err AT3' recurring

[KD7YZ Bob]

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

-- 
73 es DX de KD7YZ Bob