[Elecraft] K2 key autodetect problems

[Mike Harris]

Hi Chip,

Not saying this is your problem but my Bencher twin paddles started 
going random nuts. The contact gap is small, less than the thickness of 
a sheet of 70gm paper. During keying it would stick one side or the 
other. It turned out to be the screws fastening the contact pillars not 
being tight. I guess over the years the plastic insulating washers must 
have compressed allowing the pillars to imperceptibly move.

Since tightening them, the only problem with the paddles is me.

Regards,

Mike VP8NO

On 27/03/2018 15:36, Chip Stratton wrote:
> I have the external circuit using two diodes to allow the K2 to detect when
> a straight key is used instead of the paddles. Occasionally with the paddle
> plugged in but not keyed, the K2 will  spontaneously start sending a string
> of dashes. This will terminate, sometimes only briefly, when I do key the
> paddle. It happens even when K2 transmit power is turned all the way down,
> and I've never had trouble with RF in the shack.