[RFI] update <was> 40m (and other) noise

Jim Brown jim at audiosystemsgroup.com
Sat Apr 11 15:05:48 PDT 2009

On Sat, 11 Apr 2009 17:44:22 -0400, Eric - VE3GSI wrote:

>The ones I use are by Belkin
>called and 'Surge Master' available at Home Depot here in Canada. 

Note that I do NOT recommend MOV surge suppression products, which 
is what these devices are. MOVs can be really bad news on branch 
circuits, because they can actually CAUSE destructive failures of 
interconnected equipment. The only good application for them is as 
part of a "whole house" suppression system installed at the service 
entrance.  For a technical discussion of this, see the Power and 
Groudning tutorial or the RFI tutorial on my website. 


Jim Brown K9YC

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