[Elecraft] K3s/WSJT-X 1.80rc1 TX issue

[Jim Brown]

I use VOX for all digital modes. DATA A for all digital modes except 
RTTY, where I use AFSK. Works great. As Dick notes, you may have to 
adjust VOX Gain to get the rig to go into transmit, just like any other 
VOX operation. And, as with all digital operation, it's critical to not 
overdrive the radio with too much audio from the computer.  Follow 
manual instructions for setting level from the computer to the radio and 
also for setting Line In gain. Start with a level from the computer in 
the range of 25%.

For WSJT-X, I set CAT Control to the port my radio shows up on, set PTT 
method to VOX, set Mode to None, and set Split to None. With this setup, 
the only thing CAT is doing is setting and reading TX dial frequency 
(the frequency of the suppressed carrier in USB mode).  The problem with 
using CAT for more than that is that Windoze can introduce unacceptable 
delays.

73, Jim K9YC

On 8/11/2017 9:49 AM, Richard Ferch wrote:
> Once it is working, I would suggest that you put the K3S in Split mode and
> set Split Operation in WSJT-X to Rig. This will ensure that the software
> always transmits using audio between 1500 Hz and 2000 Hz, regardless of
> where the received signal is in your IF bandpass.
>
> If you find that using split results in excessive delays in starting to
> transmit, the workaround is to turn the K3S's VOX on and set PTT to VOX in
> WSJT-X. VOX works very well in DATA A mode (you might have to adjust the
> MAIN:VOX GN setting - it should be set high enough to keep the transmitter
> on reliably during your transmissions).