systems on ships, aircraft, offshore platforms and railways
are not included.
--
Ken Javor
Ph: (256) 650-5261
From: Ralph McDiarmid
Reply-To:
Date: Friday, September 6, 2024 at 1:15 PM
To:
Subject: Re: [PSES] : IEC 61000-2-4 scope
My turn to ask a question to the group
Totally of the original topic, but I have used “swag” uncapitalized in several
papers on the topic of electromagnetic coupling to and from cables over a
ground plane. In that context, “swag” means single-wire-above-ground.
--
Ken Javor
Ph: (256) 650-5261
From: Ken Javor
Silly wild ass guess is what I mean when I use that acronym.
--
Ken Javor
Ph: (256) 650-5261
From: "James Pawson (U3C)"
Reply-To: "James Pawson (U3C)"
Date: Tuesday, June 25, 2024 at 7:29 AM
To:
Subject: Re: [PSES] dielectric strength question
Coul
.
Sorry, that’s all I’ve got, which is why I didn’t originally respond. Long
shot, if anyone has a copy of the original 1973 release of MIL-HDBK-237, I
would appreciate a copy, to complete my collection.
Thank you,
--
Ken Javor
Ph: (256) 650-5261
From: Ken Wyatt
Reply-To
off both 120 V and 240
simultaneously, then you would need two pairs of LISNs.
Current rating is whatever you need. I believe there are several manufacturers
offering models designed for up to 16 A.
--
Ken Javor
Ph: (256) 650-5261
Hello and Happy Friday,
I've got a
sufficient capacity between test sample enclosure and the
table leg(s), that could look like a short at resonance. The earlier model I
described clearly goes open-circuit.
--
Ken Javor
(256) 650-5261
From: John Woodgate
Date: Thursday, December 28, 2023 at 5:03 PM
To: Ken Javor ,
Subject: Re
the tabletop is thick enough to
limit stray capacity. If one had OCD tendencies, one could measure the capacity
between a piece of metal laid on the tabletop and the ground plane, and as long
as the capacity were suitably low (single-digit picofarads?) that would suffice.
--
Ken Javor
(256
I didn’t know the answer to a single question. I feel smarter than if I had
known any of the answers. And I feel really smart not paying any attention to
all of that.
--
Ken Javor
(256) 650-5261
From: Richard Nute
Reply-To:
Date: Friday, November 10, 2023 at 4:38 PM
To:
Subject
someone with
five decades of experience, and they must spend an inordinate amount of time
($$$) to get it right, then the standard is a failure.
--
Ken Javor
(256) 650-5261
From: "doug emcesd.com"
Reply-To: "doug emcesd.com"
Date: Friday, August 11, 2023 at 11:26
.”
--
Ken Javor
(256) 650-5261
From: Richard Nute
Reply-To:
Date: Thursday, July 27, 2023 at 1:07 PM
To:
Subject: Re: [PSES] Woodgate's reply on residential Immunity field strength
I’m a product safety engineer. This discussion is based upon a safety standard
specifying a limit fo
I don’t see 100 V/m. Assuming an omni pattern, 0.5 W peak power and using,
E = √(30•ERP) / r
the phone would need to be within a few centimeters of the observation point,
and in that close the distance scaling assumption in that equation breaks down.
--
Ken Javor
(256) 650-5261
uniform field area,
thereby allowing the use of higher gain antennas, and lower power amplifier
requirements at the higher frequencies where such power becomes (even more)
expensive.
--
Ken Javor
(256) 650-5261
From: John Woodgate
Reply-To: John Woodgate
Date: Monday, July 24, 2023 at
use round numbers).
--
Ken Javor
(256) 650-5261
From: Brian Gregory
Reply-To: Brian Gregory
Date: Monday, July 24, 2023 at 4:49 PM
To:
Subject: Re: [PSES] Woodgate's reply on residential Immunity field strength
The reference for 20 V/m to EV chargers comes from UL 2231-2.
will be the same whether real or simulated.
Seems to me your antenna is a PCB trace or traces. I‘m thinking that they
would not be much affected by the presence/absence of the BLS.
--
Ken Javor
(256) 650-5261
From: Chas Grasso
Reply-To: Chas Grasso
Date: Friday, July 21, 2023 at 2
of the modulation envelope being 18 V/m per 61000-4-3) may be able to do
20 V/m, peak as well.
--
Ken Javor
(256) 650-5261
From: Brian Gregory
Reply-To: Brian Gregory
Date: Friday, July 21, 2023 at 11:44 AM
To:
Subject: [PSES] Immunity test field strength, residential setting
, because nowadays the effects of these different detectors are
simulated in software.
--
Ken Javor
(256) 650-5261
From: Paolo Roncone
Reply-To: Paolo Roncone
Date: Sunday, July 16, 2023 at 3:57 AM
To:
Subject: Re: [PSES] 6dB pad
Hi Ken and all others,
Thanks again for your
The typical spectrum analyzer / EMI receiver input only looks like 50 Ω with
some input attenuation. Typically, they specify vswr in a 50 Ω system with 10
dB internal attenuation selected.
--
Ken Javor
(256) 650-5261
From: Richard Nute
Reply-To:
Date: Saturday, July 15, 2023 at 4:28
See previous response. A transmission line needs a good match at each end to
control vswr-related reflection uncertainty. Assuming both antenna and EMI
receiver provide that, no extra attenuation is required.
--
Ken Javor
(256) 650-5261
From: Paolo Roncone
Date: Saturday, July 15
-related uncertainty.
Unfortunately, you often cannot stand the desensitization of all the extra
attenuation.
--
Ken Javor
(256) 650-5261
From: Paolo Roncone
Reply-To: Paolo Roncone
Date: Saturday, July 15, 2023 at 10:29 AM
To:
Subject: Re: [PSES] 6dB pad
Hi Ken
Thanks
But he is placing the pad at the receiver input in lieu of an internally
selected 10 dB, not at the antenna's output port.
--
Ken Javor
(256) 650-5261
On 7/14/23, 6:00 PM, "T.Sato" wrote:
On Fri, 14 Jul 2023 22:53:41 +0200,
Paolo Roncone wrote:
> I
manufacturer’s spec for vswr, and thus your uncertainty budget
increases.
If your ambient source is brush noise, preselection should help with that, once
you are out of band to it.
Band stop filters will help with known transmitters.
--
Ken Javor
(256) 650-5261
From: Paolo
.
--
Ken Javor
(256) 650-5261
From: Brian Kunde
Reply-To: Brian Kunde
Date: Tuesday, July 11, 2023 at 9:31 AM
To:
Subject: Re: [PSES] FCC Part B questions
If I may pile on late, keep in mind that measurement uncertainty is Plus or
Minus (±). Years ago when I was with a previous
You don¹t say which LISN model or application, but obviously you need to
check the ratings on the line-to-ground cap(s). Likely not an issue for
you, but you can run into problems with leakage currents when using a LISN
designed for 50/60 Hz on 400 cycle power.
Ken Javor
Phone: (256) 650-5261
measure
of the surface hardness.
Ken Javor
Phone: (256) 650-5261
From: Brian Kunde
Reply-To: Brian Kunde
Date: Tue, 11 Apr 2023 15:45:29 -0400
To:
Subject: [PSES] How to Measure Surface Conductivity?
I have been given two samples of metal plates; one plated in our current
material and the
where the scale factor is 40 log (distance ratio)
over such a large ratio.
In order to provide a more useful answer, the transmit frequency and antenna
physical size and gain and type would be useful.
Ken Javor
Phone: (256) 650-5261
From: Youngsik Kim
Reply-To: Youngsik Kim
Date: Thu, 6 Apr
approaches to achieving the same goal.
Ken Javor
Phone: (256) 650-5261
From: "Grasso, Charles"
Reply-To: "Grasso, Charles"
Date: Wed, 5 Apr 2023 07:41:02 -0600
To:
Subject: Re: [PSES] Safety: 60335-1 conflicting clauses question - earthing
(or not) of handles
How exactly does
Previous comments restrict the issue to microwave frequencies and a
double-ridge guide horn.
I believe this issue first came up when transitioning from dipoles to higher
gain antennas below 1 GHz, such as log-periodic arrays. The same concept
applies to LPAs.
Ken Javor
Phone: (256) 650-5261
issue.
Another obvious observation is that absent absorber, the chamber will be
resonant.So whether this works or not depends on what kind of testing is
desired.
Ken Javor
Phone: (256) 650-5261
From: Amund Westin
Reply-To: Amund Westin
Date: Tue, 28 Mar 2023 19:33:21 +0200
To:
Subject
ies is stricter
than for less ubiquitously used products.
Ken Javor
Phone: (256) 650-5261
> From: "T.Sato"
> Reply-To: "T.Sato"
> Date: Sun, 19 Feb 2023 14:03:21 +0900
> To:
> Subject: Re: [PSES] Adding more than one EUT
>
> On Sat, 18 Feb 2023 19:12:57
units at a time, what about ... light bulbs?
Meaning CFLs or LEDs.
My house is full of them. It is reasonable to assume that most
homes/businesses are. Perhaps the emissions limits for these were based on
this reasonably foreseeable outcome?
Ken Javor
Phone: (256) 650-5261
From: John Mcbain
benefit from the NARTE certification process. The original ³need² was driven
by DoD, and while NARTE attempted to broaden their prospective customer base
by inventing all manner of new certifications, that was not customer-driven
at all.
Ken Javor
Phone: (256) 650-5261
From: "Grasso, Ch
Did any employer care that you were a member of the IEEE EMC Society? I mean
before you were a president and active? Even then, wasn¹t it more on you to
ensure your employer would back you up on all the travel and time before you
could make commitments?
Ken Javor
Phone: (256) 650-5261
From
My point is there is something broken in the approval system if someone can
arbitrarily exclude something like a zero or peak-crossing switch.
Ken Javor
Phone: (256) 650-5261
From: "doug...@gmail.com"
Date: Tue, 18 Oct 2022 10:46:01 -0600
To: Ken Javor
Cc:
Subject: Re: [PSES] Asse
should not even be a subject of debate.
Ken Javor
Phone: (256) 650-5261
From: "doug...@gmail.com"
Date: Tue, 18 Oct 2022 10:06:20 -0600
To: Ken Javor
Cc:
Subject: Re: [PSES] Assess risk of electric shock from charged capacitors
Ken,
I may be wrong but I believe the reluctance to accep
I¹m curious as to the rationale behind that. It should be obvious that the
power was turned off at the appropriate time. That would be demonstrated
using an o¹scope, just as in the hit or miss method.
What¹s different?
Ken Javor
Phone: (256) 650-5261
From: "doug...@gmail.com"
Reply
A simple circuit can provide disconnect at the peak of the ac waveform.
Ken Javor
Phone: (256) 650-5261
From: "doug...@gmail.com"
Reply-To: "doug...@gmail.com"
Date: Mon, 17 Oct 2022 13:08:17 -0600
To:
Subject: Re: [PSES] Assess risk of electric shock from charge
rage detector would have taken forever. Nowadays, detectors are simulated
and the same fast sweep can give results for both average and quasi-peak and
peak detection. So in that regard, the instruction to use a single detector
is antiquated, but you have to go by the obsolete spec.
Ken Javor
Phone:
I guess I don¹t see an issue with a spring-loaded finger. The operation
would be very much like the switch that controls lights in an automobile
when the door opens. It only need make contact when door is fully closed.
Ken Javor
Phone: (256) 650-5261
From: Frank Tang
Date: Fri, 17 Jun 2022 00
issue: a little corrosion or ³gunk² between plate and finger would break
down in the event of a line-potential fault to the door/access panel.
Ken Javor
Phone: (256) 650-5261
From: John Cochran
Reply-To: John Cochran
Date: Thu, 16 Jun 2022 19:52:00 +
To:
Subject: Re: [PSES] Removable door
Electro-Metrics used to, but they don’t show on their web site. Eaton/Ailtech
used to, but not in the business anymore. I have log-spirals from EMCO and
Eaton spanning 100 MHz to 10 GHz. Never saw any spec’d below 100 MHz.
--
Ken Javor
(256) 650-5261
From: "James Pawson
No clue what state but if I had to guess (and that is all this) I would guess
California. Knee jerk reaction – seems to me that an ESD test that takes out
an equipment 15 – 20 feet away is wildly overstressing.
--
Ken Javor
(256) 650-5261
From: "doug emcesd.com"
Reply
same thing. If the FM deviation were say 1%,
you could step in 1% steps, instead of the much smaller ones typically
prescribed at microwave frequencies.
--
Ken Javor
(256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Friday, May 6, 2022 at 12:50 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
traditional technique.
--
Ken Javor
(256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Friday, May 6, 2022 at 12:14 PM
To:
Subject: Re: [PSES] Dual antenna during RE test ?
yes, agree.
two tones and single antenna is promoted by AR. So what is next level
improvement?
Can we
The AR approach of multiple frequencies at the same time from a single antenna
seems simpler.
--
Ken Javor
(256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Friday, May 6, 2022 at 11:01 AM
To:
Subject: Re: [PSES] Dual antenna during RE test ?
Hi Bill and everyone-
I am
measurement.
--
Ken Javor
(256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Monday, May 2, 2022 at 2:00 PM
To:
Subject: [PSES] Dual antenna during RE test ?
Hi All -
I'm wondering if there is any academic or practical literature on the use of
two antennas duri
There's at least one entire mil-spec on this topic. If you wnta copy, let me
know.
Ken Javor
Phone: (256) 650-5261
> From: Derek Walton <00734758d943-dmarc-requ...@listserv.ieee.org>
> Reply-To: Derek Walton
> Date: Tue, 29 Mar 2022 07:52:00 -0500
> To:
>
higher (if memory serves).
My question is: was there a similar type curve for ~140 cm biconicals, where
one would expect the 20 dB per decade slope to be valid to a lower frequency
before flattening out? Anyone recall this?
Thank you,
Ken Javor
Phone: (256) 650-5261
-proof-of-covid-vaccination-or-a-recent-negative-test/
Ken Javor
Phone: (256) 650-5261
From: Douglas Smith
Reply-To: Douglas Smith
Date: Thu, 27 Jan 2022 22:05:28 +
To:
Subject: [PSES] EMC/SIPI symposium question
Hi Everyone,
I just saw an announcement from the Symposium in August in
for
instance, with a full-up EMC department, punted on AM BCB reception in their
electric vehicles.
Ken Javor
Phone: (256) 650-5261
From: Bill Owsley <00f5a03f18eb-dmarc-requ...@listserv.ieee.org>
Reply-To: Bill Owsley
Date: Mon, 20 Dec 2021 03:25:20 +
To:
Subject: Re: [PS
The
only FCC overview of any of this concerns SAE J551, where they measure
vehicle-level emissions at ten meters separation from the vehicle, for the
protection of roadside licensed broadcast receivers.
Ken Javor
Phone: (256) 650-5261
From: "James Pawson (U3C)"
Reply-To: "James
are both easily achievable with typical FET switches.
Ken Javor
Phone: (256) 650-5261
From: Ken Javor
Date: Fri, 10 Dec 2021 14:43:08 -0600
To:
Conversation: [PSES] unusual conducted emissions question
Subject: Re: [PSES] unusual conducted emissions question
Well of course the switching device
inrush current, or transient potential drop without a
controlled source impedance is every bit as unacceptable as measuring either
steady-state frequency domain current or voltage ripple in the absence of a
LISN or feedthrough capacitor.
It is an uncontrolled measurement.
Ken Javor
Phone: (256) 650
the power cycling device goes between the LISN output and the
switched load.
Ken Javor
Phone: (256) 650-5261
From: Douglas Smith
Reply-To: Douglas Smith
Date: Fri, 10 Dec 2021 00:16:51 +
To:
Subject: [PSES] unusual conducted emissions question
Hi All,
I have come across an unusual
May be off-topic to your query, but since it is automotive wouldn¹t the
unintentional emissions have to meet CISPR 25?
Ken Javor
Phone: (256) 650-5261
From: Ken Wyatt
Reply-To: Ken Wyatt
Date: Fri, 19 Nov 2021 14:57:39 -0700
To:
Subject: [PSES] Test & measurement with cellular module
conductivity. All seams, apertures, and penetrations must be handled
in a manner to protect the SE inherent in the paint conductivity.
Ken Javor
Phone: (256) 650-5261
From: "Grasso, Charles"
Reply-To: "Grasso, Charles"
Date: Thu, 18 Nov 2021 09:05:14 -0700
To:
Subject: [PSES] Pu
I saw one. Something about a compliance manager for a company selling into
the EU, or all over, or some such.
Ken Javor
Phone: (256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Fri, 12 Nov 2021 09:20:52 -0800
To:
Subject: [PSES] Job Posting
i'd like to post a job opening, but can&#
as pronounced, but there just isn¹t enough space between a ~1 kHz
pass band and 10 kHz 100 dB stop-band for the filters to have zero effect at
400 Hz.
Ken Javor
Phone: (256) 650-5261
From: John Woodgate
Organization: J M Woodgate and Associates
Reply-To: John Woodgate
Date: Wed, 27 Oct 2021
imagine (well, at least since Eden was closed off to human habitation).
Life in an aboriginal setting, outside maybe the South Sea islands, is
nasty, brutal, and short.
Ken Javor
Phone: (256) 650-5261
From: Manny Barron
Reply-To: Manny Barron
Date: Thu, 14 Oct 2021 19:28:17 -0700
To:
Subject: Re
current after 50 ms.
Thank you,
Ken Javor
Phone: (256) 650-5261
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
All emc-pstc
:
> "OConnor, Finbarr M"
Thank you,
Ken Javor
Phone: (256) 650-5261
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
Does anyone out there have a copy of this recent revision?
If so, can you tell me if it includes a new provision for separate
calibration of horizontal and vertical polarization antenna factors for
wire-type antennas?
Thank you,
Ken Javor
Phone: (256) 650-5261
It¹s clear that EMC is part of applying for the CE mark, but I guess the
real question I was asking apparently none too skillfully is why would a
CE mark be required for a piece of equipment slated for use on a military
vehicle, and Brit as well?
Ken Javor
Phone: (256) 650-5261
From
Just out of curiosity, recognizing this isn¹t going to help, but since it
has no mains connection and is powered by vehicle dc primary power, why
isn¹t DEF STAN 59-411 the sole EMI standard involved?
Ken Javor
Phone: (256) 650-5261
From: Philip Stevenson
Reply-To: Philip Stevenson
Date: Tue
changing to passing. He questioned
why they had even hired Mark what did he do for them?
Mark got angry, and left.
End of story.
Ken Javor
Phone: (256) 650-5261
From: "doug...@gmail.com"
Reply-To: "doug...@gmail.com"
Date: Fri, 25 Jun 2021 11:55:26 -0600
To:
Subject: [PSES]
Agree. But at 145 MHz, cable is electrically long. In order to compare
before and after, need to measure at exactly the same location, on account
of standing waves, unless you used an absorbing clamp, in which case no
issue.
Ken Javor
Phone: (256) 650-5261
From: Amund Westin
Reply-To
are good at the very low
end, where the cage elements are simply too short to achieve the
characteristic impedance and instead look capacitive.
Hence the crummy low-frequency vswr of all 137 cm tip-to-tip biconicals used
from 30 200 MHz.
Ken Javor
Phone: (256) 650-5261
From: Ken Javor
Reply
Any biconical with a 137 cm tip-to-tip length suffices, as that is the only
criterion set. There have been improvements in balun technology made since
the 94455-1. The antenna factor should be smoother and more accurate.
Ken Javor
Phone: (256) 650-5261
From: "Price, Andrew (Leonard
While I had nothing to do with any CISPR limit setting or test methods, it
seems intuitively appealing that the 80 MHz demarcation between conducted
and radiated immunity is based on the efficiency of the biconical antenna,
or any similarly sized antenna:
Ken Javor
Phone: (256) 650-5261
From
Not an answer, but one would expect some sort of correlation between the
61000-4-6 levels of 1, 3, and 10 V, and the 61000-4-3 levels of 1, 3, and 10
V/m.
But I have asked for and never seen the derivation.
Ken Javor
Phone: (256) 650-5261
Hello all,
I am looking for background
Patrick,
Thank you so much. I didn¹t know how to look something like this up.
Much obliged!
Ken Javor
Phone: (256) 650-5261
From: Patrick
Reply-To: Patrick
Date: Mon, 1 Mar 2021 17:59:20 -0700
To:
Subject: Re: [PSES] Clock Jitter, Effect on Radiated Emission Spectrum
Hi Ken
this is a
?
Thank you,
Ken Javor
Phone: (256) 650-5261
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
All emc-pstc postings are archived and
>From the Reference Handbook for Radio Engineers, 2nd edition, 1946:
Ken Javor
Phone: (256) 650-5261
> From: John Barnes
> Reply-To: John Barnes
> Date: Mon, 8 Feb 2021 10:43:29 -0500
> To:
> Subject: Re: [PSES] AW: [PSES] Friday Question - table of electroche
Good points, all – thanks.
Ken Javor
Phone: (256) 650-5261
From: Joe Randolph
Reply-To: Joe Randolph
Date: Fri, 29 Jan 2021 13:58:32 -0500
To:
Subject: Re: [PSES] Digital logic question
I am not an expert in EMC, but I have a pretty good understanding of the
basics. I’ve been watching
Makes sense. Awaiting test results...
Ken Javor
Phone: (256) 650-5261
From: Ken Wyatt
Reply-To: Ken Wyatt
Date: Tue, 26 Jan 2021 11:56:58 -0700
To:
Subject: Re: [PSES] Digital logic question
I agree. In the early days at HP, we would commonly place a simple low-pass
R-C filter after the
-free
operation.
Agree/disagree?
Ken Javor
Phone: (256) 650-5261
From: Ken Wyatt
Reply-To: Ken Wyatt
Date: Tue, 26 Jan 2021 11:34:04 -0700
To:
Subject: Re: [PSES] Digital logic question
Hi Ken,
The biggest problem I see when faced with RE issues is that clocks,
data/address buses and
rise and fall times, or do the logic
chips fed by the clock act as Schmitt triggers and square things up again if
they operate off a fast logic family?
Thank you,
Ken Javor
Phone: (256) 650-5261
-
This message is from the IEEE Product
On advice and a url from John Woodgate yesterday, was able to acquire a pdf
version of CISPR TR 16-3 2015 edition for $40. Great advice – thanks, all!
Ken Javor
Phone: (256) 650-5261
From: Charlie Blackham
Reply-To: Charlie Blackham
Date: Tue, 5 Jan 2021 16:03:06 +
To:
Subject: Re
holds it there...
Also the base is phenolic and the cone is fiberglass. Any adhesive experts
out there with a recommendation for the proper glue?
Ken Javor
Phone: (256) 650-5261
From: Ken Wyatt
Date: Wed, 9 Dec 2020 16:22:30 -0700
To: Ken Javor
Cc: "EMC-PSTC@listserv.ieee.org"
S
The international version of RTCA/DO-160 section 21 comes to mind, but that
is only for aircraft use.
Ken Javor
Phone: (256) 650-5261
From: Charlie Blackham
Reply-To: Charlie Blackham
Date: Sat, 3 Oct 2020 16:12:57 +
To:
Subject: [PSES] Commercial Standards with strict EMC emissions
I've seen/heard this doing injection at audio. Expect that if your rf clamp
is singing at the modulation frequency, suggest that is a saturation
phenomenon causing the physical movement.
Ken Javor
Phone: (256) 650-5261
From: Rick Goodwin
Reply-To: Rick Goodwin
Date: Wed, 5 Aug 2020 14:
I've seen/heard this doing injection at audio. Expect that if your rf clamp
is singing at the modulation frequency, suggest that is a saturation
phenomenon causing the physical movement.
Ken Javor
Phone: (256) 650-5261
From: Rick Goodwin
Reply-To: Rick Goodwin
Date: Wed, 5 Aug 2020 14:
Not at all helpful, but I have always wondered why, if we speak of high
voltage, we don¹t also speak of high amperage and high ohmage?
Ken Javor
Phone: (256) 650-5261
From: Regan Arndt
Reply-To: Regan Arndt
Date: Mon, 3 Aug 2020 16:35:01 -0700
To:
Subject: [PSES] High voltage versus High
number of turns (Faraday Law calculation).
Ken Javor
Phone: (256) 650-5261
From: "Larry K. Stillings"
Reply-To: "Larry K. Stillings"
Date: Mon, 13 Jul 2020 14:03:15 +
To:
Subject: Re: [PSES] Small loop antenna
John,
ETS Lindgren has some smaller loop antennas in their
.
Current? Voltage? If voltage, at what point: outlet or breaker box or... ?
Knowing what their concern is would go a long ways towards defining what the
problem solution is, and who might be the best at solving it.
Ken Javor
Phone: (256) 650-5261
From: Ken Wyatt
Reply-To: Ken Wyatt
Date: Sat
be working on a second edition, before I
forget everything and get put out to pasture…
--
Ken Javor
(256) 650-5261
From: Michael Viau
Reply-To: Michael Viau
Date: Saturday, May 30, 2020 at 11:14 AM
To:
Subject: Re: [PSES] Unreasonable Design Penalties on Receivers
Ken, your last
a stringent -464 EME, I’d say they need to sharpen their pencils some.
--
Ken Javor
(256) 650-5261
From: Michael Viau
Date: Friday, May 29, 2020 at 6:22 PM
To: Ken Javor
Cc: "EMC-PSTC@listserv.ieee.org"
Subject: Re: [PSES] Unreasonable Design Penalties on Receivers
requirement can only be a CS type when procuring a radio receiver.
If you are trying to determine whether or not the actual EME is going to damage
the receiver, you have to include antenna characteristics, and that is an
integration issue, not a radio procurement issue.
--
Ken Javor
(256) 650
ly and in close
it does not fall off as 1/r (electric field) or 1/r² (power density). Very
close in it plateaus out.
Ken Javor
Phone: (256) 650-5261
From: Richard Nute
Reply-To:
Date: Thu, 13 Feb 2020 10:19:35 -0800
To:
Subject: [PSES] A Radio Frequency Exposure Test Finds an iPhone 11 Pro
Excee
widget.
Ken Javor
Phone: (256) 650-5261
From: DEREK WALTON <00734758d943-dmarc-requ...@ieee.org>
Reply-To: DEREK WALTON
Date: Thu, 31 Oct 2019 16:58:30 -0500
To:
Subject: Re: [PSES] FCC regulatory statements
Hi Folks,
just a quick comment on the LED lights. ANSI has been workin
).
Now if we are talking an electrically short dipole, then yes, it¹s pretty
much all electric.
Ken Javor
Phone: (256) 650-5261
From: John Woodgate
Organization: J M Woodgate and Associates
Reply-To: John Woodgate
Date: Mon, 28 Oct 2019 22:24:51 +
To:
Subject: Re: [PSES] Reading or Limit
Doug referred.
Ken Javor
Phone: (256) 650-5261
From: "doug emcesd.com"
Reply-To: "doug emcesd.com"
Date: Mon, 14 Oct 2019 19:41:42 +
To:
Conversation: [PSES] Any Different Results in ESD Testing when Changing
Brands of ESD Simulator (IEC 61000-4-2)
Subject: Re:
Not that it helps today, but there are new room technologies where the
panels are sheet metal, not wood or particle board sandwiched between
sheets, and the moving in the future of rooms of such construction will be
much easier.
Ken Javor
Phone: (256) 650-5261
From: "Wiseman, Joshua"
I cannot remember the company¹ name, but there is an outfit COUNS that
specializes in moving shield rooms. And there are other people who are
members of this forum who know the company, and hopefully remember the name
and contact info.
Ken Javor
Phone: (256) 650-5261
From: "Wiseman, J
Honeywell where? You can use mine if CONUS. Not 17025 calibrated, but you or
I can quickly verify its performance.
Ken Javor
Phone: (256) 650-5261
From: "Jones, Richard"
Date: Thu, 22 Aug 2019 17:13:59 +0000
To: Ken Javor , "EMC-PSTC@LISTSERV.IEEE.ORG"
Conversation:
coverage, the only way I know to get that wide is with
a Hall-effect oscilloscope probe. But it won¹t have the dynamic range. And
likely not the E-field shielding (although I have never measured that).
The 2877 is quite inexpensive I¹m curious why a substitute is necessary?
Ken Javor
Phone: (256) 650
eyes glued to a meter or display?
Thank you,
Ken Javor
Phone: (256) 650-5261
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
All
, I will look at the more complex approaches, but
so far it appears this one works. By which I mean, I can understand it and
it seems to be in agreement with empirical data.
Ken Javor
Phone: (256) 650-5261
From: Manny Barron
Reply-To: Manny Barron
Date: Wed, 14 Aug 2019 17:07:44 -0700
To
, I will look at the more complex approaches, but
so far it appears this one works. By which I mean, I can understand it and
it seems to be in agreement with empirical data.
Ken Javor
Phone: (256) 650-5261
From: Manny Barron
Reply-To: Manny Barron
Date: Wed, 14 Aug 2019 17:07:44 -0700
To
at three or more
meters distance...
Ken Javor
Phone: (256) 650-5261
From: John Woodgate
Reply-To: John Woodgate
Date: Tue, 13 Aug 2019 15:46:19 +0100
To:
Subject: Re: [PSES] GTEM cell used for RE measurement
Won't the manufacturer tell you?
Best wishes
John Woodgate OOO-Own Opi
at some far field distance. Somewhere I have Myron Crawford¹s original
treatise on this subject, but I can¹t put my hands on it.
Ken Javor
Phone: (256) 650-5261
From: "Heckrotte, Michael"
Date: Tue, 13 Aug 2019 16:34:58 +0000
To: Ken Javor , "EMC-PSTC@LISTSERV.IEEE.ORG"
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