[Elecraft] K3: glitch canceling CW using 'KY @'

[Mike Markowski]

I wrote a tiny C program that uses KY to send a string, but I also use
'KY @;' to cancel anything in progress.  On occasion, sending is
properly canceled but I get a sidetone.  The transmit led is not on when
this happens, so I assume I'm not transmitting.  I only have to send a
dit to stop the tone.

I'm using firmware 4.12.

Just an FYI.  73,
Mike ab3ap