[Elecraft] Serial port keying via the K2 (Logger32)

[Jim Brown]

On Wed, 13 Oct 2004 19:24:17 -0400, john wrote:

>I wonder if other K2 owners (with the KI02 option of course!)
>are using computer keying?  If so, did you implement 
>it using the DTR or PTT method via the serial port, or 
>via the parallel port?  

I have been using DTR keying with WriteLog quite successfully. Depending on your 
antenna system and the power level at which you are operating, it may be necessary to 
rebuild the serial interface cable using shielded twisted pair cable. It also helps to correct 
the pin 1 problems at both ends of the serial keying cable by connecting the shield to the 
DB9 shell, not the so-called "signal ground."  

The condition under which I had to take these measures  are when I use a long wire that 
puts a lot of RF in my shack and have my K2/100 fired up.  (I do this on 160 and 80, and it 
gets out pretty well). This would probably NOT be an issue with a good resonant antenna 
30+ feet from the shack and fed by a reasonably well matched line. 


Jim Brown  K9YC