[Elecraft] k3 7536

[Pfizenmayer]

Called V73NS  tonite on 20 CW and he could not make out keying - said very choppy - the keying sounds fine in the headphones virtually no matter what I do. But on external rx it does in fact sound very choppy and sometimes misses characters ,

Using LOGIKIT CMOS4  external keyer - not the internal keyer. 

Using 
VOX
QSK SEMI
TX dly 020 (tx delay is also affecting CW weight) 
CW QRQ is OFF 

P3 is connected on the RS232 buss. 

I turned off  the logging computer - rebooted the K3 and still sounds lousy

If I use PTT with a foot pedal to PTT jack  CW gets even more choppy 

OK  , what have I got set wrong ????

Hank K7HP