[Elecraft] K3 Audio out artifacts

[Jim Brown]

On Mon, 2 Mar 2009 09:36:20 -0800, Mike Scott wrote:

>Is there something about my test set up that I do not understand? 

Yes. The hum is probably in your test setup. Check out my tutorial 
on Ham Interfacing.

http://audiosystemsgroup.com/HamInterfacing.pdf

and the corresponding material in text form in Chapter 8 of 

http://audiosystemsgroup.com/RFI-Ham.pdf

73,

Jim K9YC