[CQ-Contest] Bravo - CQ

[Jim Brown]

I suggest that anyone who believes they need isolation transformers 
study my tutorial on Power, Grounding, and Audio. All that is needed is 
simple good engineering practice for power distribution, equipment 
bonding, and grounding.

http://k9yc.com/GroundingAndAudio.pdf

73, Jim K9YC

On Thu,6/25/2015 7:20 AM, Ed Sawyer wrote:
> In my case - I found that separate isolation transformers were need on each
> channel L/R to make it noise and "click free" as I changed radios.