[RFI] AM Radio Dropped From Electric Vehicles Due To RFI

[Michael Tope]

I bought a Toyota RAV4 PHEV recently. Today I tried out the AM radio in 
electric-only mode while driving on the I-210 Freeway through Pasadena, 
Ca. The reception was surprising good. I could hear some hash in the 
background, but I had no problem receiving all the various AM stations 
around town that I would expect to receive with a quality AM receiver in 
an conventional ICE equipped vehicle. I still need to try it out in 
hybrid-mode or charging-mode with the ICE engine running to see what if 
any ignition noise is present, but in electric-vehicle mode, the AM 
radio works surprisingly well.

73, Mike W4EF.................

On 7/23/2022 3:32 PM, Tony wrote:
> All:
>
> It appears that some electric vehicle manufactures are eliminating AM 
> radio due RFI generated by EV's. The article below outlines the reasons.
>
> It reads in part:
>
> /"electromagnetic frequencies generated by EV motors occupy the same 
> wavelength as AM radio signals. The competing signals clash, 
> effectively cancelling each other out. As EV motors grow more 
> powerful, AM static tends to increase./
>
> I suspect the harmonics from that interference could cause havoc on 
> the HF spectrum -- something to think about for those contemplating HF 
> mobile in an EV.
>
> Tony -K2MO
>
> Article Link:
>
> http://www.southgatearc.org/news/2022/july/interference-causes-ev-makers-to-drop-am-radio.htm?utm_source=feedburner&utm_medium=email#.YtxwkXbMIuV 
>
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