[Elecraft] K3 choppy CW

[Greg - AB7R]

Set the TX DLY menu item to a lower setting....I found that anything below 10 
worked OK.


-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065


On Wed Feb 25 15:41 , Robert Mccormack  sent:

>At ZM1A (multi-two) during the ARRL DX CW contest we received some reports 
of "choppy" CW when CT was keying via the 'Key' socket.
>Monitoring the signal with a K2 (dummy load in antenna socket) confirmed the 
reports.   CW sent using the paddle was normal.
>Both 'station one' K3 and 'station two' K3 had the same problem - substituting a 
spare K3 made no difference.   BTW, it's not RF getting into the computer - the 
keying is just as bad at 5 watts out.
>
>We continued operating, using the K3 memories for CQing and the exchange - luckily 
it wasn't a serial number.
>
>I don't know when this "choppy" keying problem started because the K3s are only 
keyed by CT during contests, but today we tried a spare 746Pro which eliminated the 
problem.
>
>So the problem is specific to our K3s, all of which had  MCU 2.67 installed plus 
the 'CW rise time' and RS-232 RF immunity mods in early February...
>
>Anyone else had this problem?
>
>73, 
>Ken ZL1AIH (ZM1A in contests)
>
>
>
>  
>
>
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