These RF chargers like the Qi for iPhones is being proposed as Automobile RF
Chargers for Hybrid cars now and are basically RF oscillators generating Lots
of RF in the HF Bands
20kW RF oscillators!!!!
https://m.youtube.com/watch?v=CEGlmQS692w
Qi RF Charger
This Will destroy the HF HamBands
Mike
WB6DJI
Sent from my iPhone
> On Apr 10, 2021, at 4:28 PM, James Gordon Beattie Jr <w2ttt@att.net> wrote:
>
> Ed,
> The bottom line question will be whether in a housing sibdivision with homes
> with two EV chargers each, can they peacefully coexist with low profile
> HF/VHF/UHF antennas in attics, around gutters and on flag poles?
>
> The pressures of domestic electronics technology and HOAs and
> deed/convenant-restricted communities are at crossed purposes with respect to
> Amateur Radio.
>
> 73,
> Gordon Beattie, W2TTT
> 201.314.6964
>
> Get Outlook for Android<https://aka.ms/ghei36>
>
> ________________________________
> From: RFI <rfi-bounces+w2ttt=att.net@contesting.com> on behalf of Hare, Ed,
> W1RFI <w1rfi@arrl.org>
> Sent: Saturday, April 10, 2021 3:21:20 PM
> To: jim@audiosystemsgroup.com <jim@audiosystemsgroup.com>; rfi@contesting.com
> <rfi@contesting.com>
> Subject: [RFI] Wireless Power Transfer with electric vehicles
>
> Oh, it's worse than the little Qi chargers, Jim. We are talking 20kW
> chargers for electric vehicles and ARRL and IARU are very concerned about
> harmonics and inverter noise. Right now, they are using magnetic loops,
> which are resonant, but also need filtering,, which at the 20 kW level Is not
> trivial. The key is to get the right limits set. ARRL has been helping to
> revise a few industry position papers, and although we don't always see eye
> to eye, we are making a difference and, more important, planning ongoing
> work. Much like BPL, the goal is not to stop technology, but to help
> identify proper EMC solutions. With BPL, HomePlug did it and HomePlug
> devices deployed successfully by the millions.
>
> Today, I am in the Lab, gathering the wiring and adapters I need to finish
> the installation of 1.5m loop and active whip on a trailer to tow behind my
> van, to get away from vehicle noise. I am headed out to two large solar farms
> in Connecticut, just to get a feel for the EMI that may be present near them
> locally.
>
> I get to have all this fun on weekends sometimes, too!
>
> -----Original Message-----
> From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> On Behalf Of Jim Brown
> Sent: Saturday, April 10, 2021 3:14 PM
> To: rfi@contesting.com
> Subject: Re: [RFI] Ed Hare W1RFI Contact Info?
>
>> On 4/10/2021 11:58 AM, Hare, Ed, W1RFI wrote:
>> I have three major issues come up with wireless power transfer,
>
> Great to hear that you're engaged on this, Ed. My RFI alarm went off years
> ago when I heard the first rumblings about this for use in charging widely
> used consumer devices.
>
> 73, Jim K9YC
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