[Elecraft] Commercial CW and K2 keyer.

[Vic K2VCO]

Fred Jensen wrote:

> Both are Mode A, and it seems that the K2 
> timing is a very teeny bit erratic compared to the K1EL.  It's not 
> enough to cause any problems for me, but it is discernable, or at least 
> that's my story and I'm sticking to it.

This is something which I've noticed.  If you put a scope on the RF 
output of the K2 and send dits at about 30 wpm, you'll notice a slight 
jitter in the weight every second or so.  Listening by ear, you hear 
dididiDIDIDIdididididididiDIDIDIdididididididiDIDIDI, etc. The 
interesting thing is that it is observable even with an external keyer. 
  It's caused by the microprocessor in the K2 being busy with something 
else -- it perorms an amazing number of functions.

Some guys swear it doesn't happen, others say it's just in the sidetone. 
  I think that at some point in the firmware development Wayne twiddled 
something which improved this -- I don't seem to notice it as much 
anymore, but I haven't re-checked with the scope.

As far as timing is concerned, when I switch between the K2 keyer and a 
Logikey, I find myself making more errors for a while until I get used 
to whichever key I'm using.  So there is a slight difference (mode B).

Of course all of this stuff is irrelevant since I went back to my bug!
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco