A customer just alerted us to a firmware issue in CW mode. When using
external keying (handkey, computer, or external computer) or the
internal keyer at over 40 WPM, the K3 may switch to the wrong receive
VFO frequency, crystal filter, and/or preamp setting on key-up. It
appears that this behavior has been present since MCU revision 1.62.
While these symptoms should occur rarely, we recommend that everyone
update their K3 MCU firmware to revision 1.69. (1.68 had just been
released yesterday.) Sorry for the inconvenience.
73,
Wayne
N6KR
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http://www.elecraft.com
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