[RFI] 13,000 Lumens - 150 watts - dad RFI

Jim Brown jim at audiosystemsgroup.com
Wed Nov 11 20:40:28 EST 2020

On 11/11/2020 5:22 PM, Tim Duffy wrote:
> Bad RFI on all bands RX at K3LR. Will #31 ferrite on the 120 VAC power line
> (at the light) - many turns - fix this bad actor?

Probably yes. I'd start with the filter that W6GJB and I worked out for 
use on 2000i generators, described on page 23 of k9yc.com/RFI-Ham.pdf It 
was added to the ARRL Handbook a year or two ago.

Note that it's critical that all three conductors go through the choke, 
and they should NOT be twisted.

73, Jim K9YC

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