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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