Dick,

I also would suggest removing all cables except the paddles and connecting a dummy load as a test.

One more thing to try on the delay situation is to set the delay somewhere in the 2 to 4 range rather than zero. My reason for that is to potentially identify a problem where the bits get "mixed up" and the delay value tries to go 'negative'. With an 8 bit number, the next 'lower' value than zero is 255, which is really a very high number. If you find something like that happening, the problem may RF in the Shack, and the cure will be found with good common mode chokes on your feedlines.

73,
Don W3FPR

On 2/20/2014 12:10 PM, [email protected] wrote:
My K3 has always had erratic QSK. I asked Elecraft to check this out when
the K3 was returned to Elecraft on another repair  issue and the Tech said
the QSK "checked out fine".  I don't  doubt the Tech's word as he was even
nice enough to phone me while he was  working on the radio.  So crazy as it
seems,  the K3's QSK works while  in California... but it does not work when
it gets home  to Florida!  Here's the issues:
QSK: The QSK will often work when the radio is cold and first turned on.
But after the first or second transmission, the  QSK quits working, and acts
like it's in semi-break-in.  Seldom will  the QSK ever work again until the
radio is powered off.  Therefore, I've  given up on QSK and operate
semi-breakin.
SEMI-BREAKIN: Until recently, semi-breakin worked fine and would quickly
return to receive as it should with the DELAY set at  0.  But today it's
acting up as there's a substantial delay after the last  CW character is sent
before it returns to receive.  I'd estimate a half  second delay before it
returns to receive.  This issue is the same  whether the VOX is on or off and
the same with the QSK on or  off.  I did double check the Delay setting and
it is set to ).   (zero)  I'm sure you will agree that trying to  "run"
stations in a contest with a half second delay before returning  to receive is a
horrible experience.
Question: Are there any settings besides "DELAY" that can effect how long
it takes the K3 to return to receive after  transmitting the last CW
character?  Perhaps a Menu setting needs  changing?
Thanks & 73,

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