[SFDXA] Air conditioner interference

[Kai]

Hi Keith,
One set of answers is coming up in August QST, "A tale of two air conditioners".
In summary:
(1) tightly twist the pair of wires that carry the control signals of the pulse 
width modulated motor (PWM) controls.
(2) tightly twist the two power wires to the PWM motor supply.
(3) ferrite chokes on the inputs and outputs of the above.
(4) use your handheld set to receive at HF as a "sniffer" and add ferrite chokes 
as needed.
73,
Kai, KE4PT


On 5/25/2016 18:36, Keith Garner wrote:
> Has anyone experienced a problem with their air handler? I was told by my AC
> guy that they are having issues with the newer variable speed motors. I am
> told there is a filter kit available that helps but not cures the problem.
>
>   
>
> Keith, K4ROX
>
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