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Re: [RFI] Update: Tesla's Response to Solar Panel RFI

To: 'Rfi List' <rfi@contesting.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI
From: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 19 Dec 2019 21:33:52 +0000
List-post: <mailto:rfi@contesting.com>
Possibly, but EU has also take a tact that it also regulates immunity, which is 
not as good a regulatory paradigm as it might appear to be. In some countries, 
they decided that if they have immunity levels of 5 to 10 V/m, hams must prove 
that they don't exceed those levels in neighbors' homes.   

The CISPR levels are also not different than FCC, for the most part, and we may 
end up confusing more than helping by cross-posting regulatory information, 
unless clearly separate, possibly defeating any purpose.

Ed



-----Original Message-----
From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> On Behalf Of Jeff (W4DD)
Sent: Thursday, December 19, 2019 9:54 AM
To: 'Rfi List' <rfi@contesting.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI

If EU's standards are the model for what we would like, should they be posted 
on web sites (like ARRL and our won) and be stated as "good engineering 
practice"?

I have found in the past vendors will generally follow guidelines if there are 
(generally accepted) guidelines to follow.  The FCC may have Part 15 but if 
Solar Panel companies ever hope to sell overseas, they should align themselves 
with international requirements also.

Just a thought,
Jeff, W4DD, PE



-----Original Message-----
From: RFI <rfi-bounces@contesting.com> On Behalf Of Hare, Ed W1RFI
Sent: Wednesday, December 18, 2019 3:10 PM
To: Kim Elmore <cw_de_n5op@sbcglobal.net>; KD7JYK DM09 <kd7jyk@earthlink.net>
Cc: Rfi List <rfi@contesting.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI

Well, I was pretty clear that this is addressed primarily as harmful 
interference, irrespective of compliance with the emissions limits. The Part 15 
rules do not require certification of ttis type of unintentional emitter, so 
there are no "certification rules."  Older systems were brought forward under 
the Verification authorization of the rules. Under rules changes from some time 
ago, these unintentional emitters can be authorized under either Certification 
or under a Suppliers Declaration of Conformity.  Most use the SDoC process.

Under the rules, the manufacturer must meet the authorization requirements, 
have a design that meets the emissions limits and meet certain marketing 
requirements.  The rules make the operator of any device regulated by the FCC 
responsible for correcting any harmful interference it may cause. 

It is generally much easier to establish harmful interference than it is to 
establish a violation of the emissions rules, so it is on this basis that most 
complaints originate.

Ed, W1RFI



-----Original Message-----
From: RFI <rfi-bounces@contesting.com> On Behalf Of Kim Elmore
Sent: Tuesday, December 17, 2019 7:59 PM
To: KD7JYK DM09 <kd7jyk@earthlink.net>
Cc: Rfi List <rfi@contesting.com>
Subject: Re: [RFI] Update: Tesla's Response to Solar Panel RFI

If there were, I’m certain Ed would have mentioned it. He’s on our side! 

Kim N5OP

"People that make music together cannot be enemies, at least as long as the 
music lasts." -- Paul Hindemith

> On Dec 17, 2019, at 6:01 PM, KD7JYK DM09 <kd7jyk@earthlink.net> wrote:
> 
> "Let me see if I can put this into perspective. First, there are a number of 
> factors here that are not usually made part of the discussions about solar 
> arrays that are being installed. The first is the applicable FCC rules...
> 
> Interesting reference, and baseline, if the offense was purely a violation of 
> Part 15 certification, and whether or not the qualifications were met, for 
> sales purposes. And, for the average idiot (consumers, at the expense of 
> those surrounding them that may be affected), this looks great on a sales 
> leaflet.
> 
> Now, to address the  ACTUAL issue...
> 
> In compliance with Part 15, or not, the ___interference to licensed, and 
> protected radio servi__ces_, as noted.
> 
> Certainly there is a valid Part that addresses THIS...
> 
> Kurt
> 
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