RFI
[Top] [All Lists]

Re: [RFI] Overview of radiated and conducted EMI standards

To: "Hare, Ed, W1RFI" <w1rfi@arrl.org>
Subject: Re: [RFI] Overview of radiated and conducted EMI standards
From: David Eckhardt <davearea51a@gmail.com>
Date: Wed, 28 Dec 2022 20:16:01 +0000
List-post: <mailto:rfi@contesting.com>
Ed, this has lately been a huge point of discussion on the RSGB Technical
site I subscribe to.  In general, Europe is far more responsible to the RFI
regulations than the USA.  Germany is the country that drove in the
harmonic tests and limits on the power grid.  Not to mention original
requirements for flicker (unstable power draw from the power grid).
Harmonics and flicker are usually addressed as a single and required test
by the EU.

The US would do well to REQUIRE PFC, power factor correction - reactive
loads to the power grid.  It's very similar to SWR in our hobby.  High SWR
eats finals in our transmitters.  Reactive loads on the power grid heat the
big and tremendously expensive power generators.  No different.

Dave - WØLEV

On Wed, Dec 28, 2022 at 7:15 PM Hare, Ed, W1RFI <w1rfi@arrl.org> wrote:

> > Remember, the FCC has no immunity requirements as the EU does.
>
> Yes, and some European countries have decided that it is unbalanced to
> have immunity requirements and no limit on the field strength of amateur
> transmitters, so in those countries, amateurs must demonstrate that they
> don't exceed the immunity levels.
>
> -----Original Message-----
> From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> On Behalf Of David
> Eckhardt
> Sent: Wednesday, December 28, 2022 2:05 PM
> To: k8cn@arrl.net <Mike.Carter@unh.edu>
> Cc: RFI List <rfi@contesting.com>
> Subject: Re: [RFI] Overview of radiated and conducted EMI standards
>
> If you really want to dig into the morass of bureaucratically determined
> by multiple committees, the standards and limits within the RF / RFI world,
> it's all accessible on the FCC page, CFR 47, which IS the FCC.  Also dig
> into C-63.4 for test methods.  A good starting point is the following
> addressing FCC:
>
>
> https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47
>
> Remember, the FCC has no immunity requirements as the EU does.
>
> Dave - WØLEV
>
>
>
> On Wed, Dec 28, 2022 at 6:11 PM Michael Carter <Mike.Carter@unh.edu>
> wrote:
>
> > The recent discussions on RFI due to solar photovoltaic systems
> > induced me to read a bit more about the standards that Ed, W1RFI has
> > described repeatedly.
> > While by no means comprehensive,
> > this pair of white papers from TI is useful for understanding both
> > conducted and radiated EMI standards:
> >
> > https://training.ti.com/fundamentals-emi<
> > https://training.ti.com/fundamentals-emi?context=1139931-1139946>
> >
> > 73, and Happy New Year,
> >
> > Mike, K8CN
> >
> >
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> >
>
>
> --
> *Dave - WØLEV*
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>


-- 
*Dave - WØLEV*
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
<Prev in Thread] Current Thread [Next in Thread>