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Re: [RFI] Wireless Power Transfer with electric vehicles

To: David Eckhardt <davearea51a@gmail.com>
Subject: Re: [RFI] Wireless Power Transfer with electric vehicles
From: Michael Aust via RFI <rfi@contesting.com>
Reply-to: Michael Aust <wb6dji_dx@icloud.com>
Date: Sun, 11 Apr 2021 12:01:09 -0700
List-post: <mailto:rfi@contesting.com>
Well
 It is here, soon to be unleashed into your
neighborhood !!!

https://www.pluglesspower.com/

Time is running out for Ham Radio !

Mike
WB6DJI 


Sent from my iPhone

> On Apr 11, 2021, at 11:27 AM, David Eckhardt <davearea51a@gmail.com> wrote:
> 
> 
> With FCC having RF exposure "safety" issues with low power wireless chargers 
> - we have to measure RF field strength as a regulatory issue, now - I 
> certainly can envision these 20 kW beomyths coming under rather nasty 
> 'safety' regulations!  That, alone, may kill the proposed nightmare - 
> hope.......hope.....  After all, BPL was conceived with its own casket (and 
> FCC cheating which ARRL took to court and won).
> 
> Dave - WØLEV
> 
> 
>> On Sun, Apr 11, 2021 at 6:10 PM Tom Thompson <w0ivj@tomthompson.com> wrote:
>> I looked at the video and 6:50 into it there is a proposed schematic 
>> that has a classic switch mode power supply circuit.  At 21 kW, that is 
>> really going to create a lot of RFI unless they do a great deal of 
>> filtering.
>> 
>> Tom   W0IVJ
>> 
>> On 4/11/2021 9:58 AM, Michael Aust via RFI wrote:
>> > Here a technical discussion on these
>> > Wireless RF chargers that will destroy
>> > HF for city dwellers for sure !
>> >
>> > https://m.youtube.com/watch?v=iOVg62_DUYU
>> >
>> > Mike
>> > WB6DJI
>> >
>> > Sent from my iPhone
>> >
>> >> On Apr 11, 2021, at 8:52 AM, Michael Aust <wb6dji_dx@icloud.com> wrote:
>> >>
>> >> 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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>> >>> RFI@contesting.com
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> 
> -- 
> Dave - WØLEV
> Just Let Darwin Work
> 
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