[Elecraft] K3 built in sound card and RF

[Jim Brown]

Exactly what do you mean by RF in the shack?

Most "RF in the shack" problems are caused by failure to do proper 
bonding.  These slides for a tutorial talk I've done for ham conventions 
and clubs are a good start. Also, study N0AX's recent ARRL book on 
Grounding and Bonding, to which I contributed.

http://k9yc.com/GroundingAndAudio.pdf

73, Jim K9YC

On 11/16/2018 9:22 AM, Jerry Muller via Elecraft wrote:
> All:    Recently I sent my k3 into get the sound card and second rcvr put in.  Upon receipt of the unit I plugged it back into the same connectors I had previously used with the exception of the NEW USB cable connection to the CPU/K3/P3. I now have tremendous RF in the shack which was not there before sending in the unit. Any help would be greatly appreciated.