[Elecraft] What's best Soundcard Interface for KX3

[Rick WA6NHC]

Bob,

While your decode level is admirable, using the SLUSB VOX to trigger the 
PTT is less than reliable.  You will be FAR better off using a CAT 
command (or RTS/DTS) for PTT.

However on my K3, I do set the tx volume to max on the sound card 
driver, the TX knob to noon, THEN adjust the ALC to 4 bars lit and the 
5th flickering.

Please note that if you change the pitch of the audio tone, you'll want 
to reset the ALC as there is a vast difference from 600 Hz output to 
2KHz output.

You can also use the DATA A mode for decoding, simplifying your setup 
(all data modes in one group).

One experiment I'm planning is using a second audio card in the desktop, 
to see if that improves low level decoding.

73,
Rick nhc

On 4/10/2016 5:17 PM, Robert Nobis wrote:
> George,
>
> Not sure how to set up VOX using an internal sound card.  For use with my SignaLink USB, I simply adjusted the output level of the sound card until it properly keyed the transmitter.
>
> Also Chapter 6 in the Elect KX-3 manual covers VOX setup. See page 66.
>
> I am also using USB rather than Data mode for decode with WSJT-X v1.7.0 dev.  I have been able to consistently get decodes down as low as  -26 to -27dB.
>
> 73,
>
>
> Bob Nobis - N7RJN
> n7rjn at nobis.net