I made an external switch box with a double pole-double throw switch.  It seems to work well if you don't mind the extra cable clutter.

Bernie, W1AZ

On 12/14/2019 5:00 AM, Andy McMullin via Elecraft wrote:
Hi Both,

This is my issue too — the switching of cables and volume levels when going 
from mic to digital and back. It’s a pain and I’ve been considering the almost 
unheard of move of swapping the KX3 for another make which has a separate 
digital input.

HOWEVER, I have also been experimenting with feeding my audio into the computer 
rather than the rig and letting it “forward” the sound via the soundcards into 
the KX3. It’s not completely there yet, but it does stop all that swapping of 
cables and the computer can handle the levels. You might be able to get it to 
work.

I hope this helps,

Regards
Andy, G8TQH


On 14 Dec 2019, at 05:14, Don Wilhelm <[email protected]> wrote:

Jim,

Yes, switching between digital and SSB modes on the KX3 is troublesome from the 
requirements imposed by the single Mic input jack and the single headphone 
(SPKR) jack.

For convience in switching between Data modes and speech modes, you will have 
to go with the K3 which has independent per mode selections.  The KX3 was not 
designed to have that same capability.
With the KX3, some form of external switching would be required to switch from 
microphone input to your digital inputs.  Attenuators in the PC soundcard to 
KX3 audio input might be requited so you do not have to contend with the 
differences in audio levels.

Such switching was not a part of the KX3 design, and you may wnat to upgrade to 
a K3 for your station instead of the KX3.

73,
Don W3FPR

On 12/12/2019 8:02 PM, Jim Jones wrote:
Okay, I'm a 2nd owner of a KX3 and I'm still reading and trying
To figure out all the commands and menu options. Yikes. Anyway,
I run a lot of digital, mainly on Mars circuits. What I'm finding
Is that I have to swap plugs for the mic and speaker each time I
Have to go to voice and then back again for digital. What would
Be nice to add to a wish list is to put a 6-pin mini-din connector
On the KX3. This would have a pin for Mic input, Ground, Key line,
And a line out audio level fixed level.
This would allow the end user to take his computer/KX3/Signalink
Out into the field and run digital fairly easy. This is just a
Wish for something in the future. By the way, great rig.
73
Jim
Jim Jones - N9DIX
Waverly, TN
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