[Elecraft] What's best Soundcard Interface for KX3

Jim Brown jim at audiosystemsgroup.com
Mon Apr 11 01:58:43 EDT 2016


On Sun,4/10/2016 10:28 PM, Rick WA6NHC wrote:
> While your decode level is admirable, using the SLUSB VOX to trigger 
> the PTT is less than reliable. 

I have no experience with the Signal Link unit, but I use AFSK RTTY, 
JT65, JT9, ISCAT, and FSK441, making thousands of QSOs in a weekend 
contest. I've never used anything but VOX for any voice or digital mode, 
whether I was using the sound card built into my laptop or a nice USB 
sound card. It makes life MUCH simpler, and it works quite reliably if 
you set it up well.

Like with any VOX setup, you start with high VOX sensitivity while 
you're getting modulation levels right, then set the VOX for reliable 
operation. There are detailed setup instructions for audio levels (but 
not for setting VOX) in my review of USB sound cards at 
k9yc.com/publish.htm

73, Jim K9YC


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