[Elecraft] K-Line on digital modes

[Jim Brown]

On 5/20/2014 7:13 PM, Don Wilhelm wrote:
> If you are using some other computer application, you will have to set 
> things up in that application to properly key the K3

All digital modes work just fine on a K3 in VOX mode. I've never used 
anything else. Thus, the only need for a serial port is for logging 
software. I use computer software to generate and decode all forms of 
digital signals. For RTTY, use AFSK RTTY, set the baud rate in the rig 
the same as the in the computer software, and set both computer and rig 
to the same tone frequencies. For all other modes, use DIG A.

Things that can go wrong, in no particular order:

1) The sound card in your computer may be sending to the wrong channel, 
may even be muted. Many programs manipulate the Windoze mixer, and 
sometimes fail to put controls back where they found them. The N1MM 
Logger is notorious for doing that.

2) If you have more than one sound card, the wrong one may be selected.

3) The Line Input gain may be too low, and/or the VOX Gain may be too 
low. The Mic Gain pot becomes Line Input Gain in AFSK and DIG A modes.

73, Jim K9YC