With a K3, the audio starts in digital form in the DSP. 
Converting it to analog to convert it back to digital for input 
to the computer can only introduce distortion.

I'm lobbying Elecraft for a direct digital interface. :-)

Cheers - Bill, AE6JV


On 4/18/12 at 21:54, j...@audiosystemsgroup.com (Jim Brown) wrote:

>Right, and I've long promoted that concept.  BUT -- I've 
>recently been comparing several (five so far) outboard A/D 
>converters, four models that connect to the computer via USB, 
>on that uses Firewire, and I've found that all of them result 
>in noticeably more reliable decoding of RTTY and JT65 signals, 
>especially weaker signals.

On 4/19/12 at 7:02, li...@subich.com (Joe Subich, W4TV) wrote:

>This is because the computer based sound cards - particularly those in
>laptops and netbooks - are so bad.  The internal power supplies are
>typically very noisy and the computer main board designers do not take
>care of things like common audio return paths, proper power supply
>bypassing, "pin 1" issues, etc.
-------------------------------------------------------------------------
Bill Frantz        | When it comes to the world     | Periwinkle
(408)356-8506      | around us, is there any choice | 16345 
Englewood Ave
www.pwpconsult.com | but to explore? - Lisa Randall | Los Gatos, 
CA 95032

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