[Elecraft] RFI on K3s

[Jim Brown]

On Sun,6/19/2016 9:55 PM, Clay Autery wrote:
> Anyone want to hazard a guess as to what is causing it?  I disco'd every
> switch-mode power supply in the shack and adjacent rooms (couldn't do
> the whole house as the XYL was home).... EXCEPT my Powerwerx SS-30DV PS
> running the K3s/P3.

Digital circuitry or SMPS are the most likely cause. See my latest 
tutorial, linked below, to learn how to tell which is which. 34 kHz 
suggests a 17 kHz square wave.

http://k9yc.com/KillingReceiveNoise.pdf

73, Jim K9YC