[RFI] Swimming Pool Pump RFI

[Jeff Blaine]

The easy alternative is just to use a dual speed pump.  The energy 
savings is not quite as ideal as the variable type, but being a 
conventional motor, they produce ZERO RFI.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com


On 6/25/20 11:32 PM, Jim McCook wrote:
> Hi Jim,
>
> The installer told me he will be sure the manufacturer has a solution 
> or he will remove it and install a AC motor or whatever it takes to 
> stop the noise.  I'm going to leave the entire project up to the owner 
> and installer.  They know about FCC Part 15.  It seems that DC motors 
> are showing up everywhere.  My neighbor had to remove several DC motor 
> ceiling fans.  I offered to visit the fan store with him to pick a 
> clean model.  Most all were DC fans and we only found a couple that 
> did not generate RFI.  The store took the previous fans back and 
> installed the new ones.  My biggest help with neighbors has been a 
> copy of the WSJ RFI article From March 12, 2014.  If anyone wants a MS 
> Word version I can Email it.  Jim W6YA
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi