You are correct, Dave. I did the math in the wrong direction. However, I have
since made some measurements of my loop compared to a dipole, and with that
correction the signal was S9+ 7 dB.
> On Apr 28, 2026, at 9:19 PM, Steve Dyer W1SRD via RFI <rfi@contesting.com>
> wrote:
>
> The Power Wall and car are different animals.
>
>> On 4/27/2026 2:37 PM, Jim Brown via RFI wrote:
>>> On 4/27/2026 1:14 PM, David Eckhardt via RFI wrote:
>>> There have been a number of reports of the Tesla chargers being quite a
>>> source of RFI on other sites as well as this one.
>>
>> When I bought my Model 3 six years ago, I probed around with my Kenwood
>> TH-F6A talkie it while charging from a 120V 15A outlet and did not detect
>> any noise. I subsequently added a 30A 240V outlet, and now charge from that.
>> I should repeat the probe with that higher voltage and current.
>>
>> About 4 years ago, I found a couple of youtube videos from a ham in W5 who
>> detailed installation of both VHF and HF rigs in his Model 3. He reported
>> hearing moderate noise only when regenerative braking. Regenerative braking
>> is a significant element of the mileage efficiency of all forms of EVs,
>> beginning with those like the Prius, that also run on petrol.
>>
>> 73, Jim K9YC
>>
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>
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