[Elecraft] K3 audio burst on turn-on

[Alan Slusher]

Please accept my apologies for asking a question that may have been dealt
with before.

My K3 (running version 3.06 software) gives a loud, short, sharp audio burst
on turn-on. The sound doesn't seem to last longer than about a half-second,
but it is loud. This happens even if the audio gain is turned right down.  I
don't recall this happening running software version 2.78, which was the
last version I had loaded. The rig works normally immediately after the
sound disappears.

Anything I can do to get rid of this noise (apart from giving away the rig,
of course)?

Cheers,

Alan  V31FA