[RFI] RFI LG Refrig Corcom filter and #31 core

Jim Brown jim at audiosystemsgroup.com
Wed Sep 29 15:48:24 EDT 2021


On 9/29/2021 12:10 PM, Mike Wetzel wrote:
> My neighbor's LG refrigerator is radiating RFI on 28MHz and Don (WD8DSB)
> temporarily hooked up a Corcom filter and a cord wrapped around a #31
> torroid core that eliminated the interference.

I'd bet that the turns around the toroid were doing all the work. Noise 
is most often on the green wire, which is a chassis-to=chassis 
connection on the filter.

73, Jim K9YC


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