[RFI] Travel trailer converter RFI solutions

[Jim Brown]

On 7/22/2022 11:42 AM, k1ttt.dave at gmail.com wrote:
> I would be very suspicious of the growl caused by ferrites on the dc line,

Dave,

That "growl" (great description) is harmonics of rectangular waves 
produced by switched-mode power supplies and power control electronics 
like the controllers for variable speed motors. Growl is not CAUSED by 
ferrites, SUITABLE ferrite chokes can SUPPRESS it on circuits that carry 
those currents. The 2-wire transmitting chokes in this link are also 
suitable in this application. http://k9yc.com/2018Cookbook.pdf

73, Jim K9YC