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On Component Recognition:
1) I can certainly sympathize with an NRTL reserving the right to reject
another NRTL's component recognition/certification. After all, an NRTL has
the right and RESPONSIBITY to protect the integrity of its mark. It seems
to me an NRTL listing equipment may be a bit
Larry,
Thank you very much for the clarification!
Can we try to conclude that
(1) The modulation parameters of A1 are the same as original EN61000-4-3.
(2) If both EN 61000-4-3 and A1 are stipulated at the same test amplitude, say
3 V/m, we don't have to retest 800-960 MHz of A1 after passing
Hello everyone,
I really apprecaite any inputs on that subjects, thanks in advance:
This is problem, I hope that I would not bore you will very much details.
We are designing a 12 layer board that has a @ 2.5 Ghz circuit. The circuit
contains a source crystal oscillator a ~ 78 Mhz PECL
Barry,
I have the copy of A1 and do verify that it states 80% AM from 800 to
960. Appendix A in the Amendment provides the rational why 80% AM was chosen.
Appendix A in a nutshell:
Sine Wave AM, Square Wave AM and Pulsed RF signals were compared on a
variety of products.
It was
The idea in the overlapping ranges is that at 800-890 MHz the test level may
be selected to be different than in the rest of the band. Otherwise the test
is same.
regards,
Ari Honkala
-Original Message-
From: EXT Maxwell, Chris [mailto:chr...@gnlp.com]
Sent: Wednesday, October 25,
I found this contact information at the ERO web site (http://www.ero.dk/
http://www.ero.dk/ ). This may or may not be the contact for
certification.
POLAND
Mr Stanislaw CYDZIK Telephone +48 22 53 05
109
Deputy Director of Department European Telefax +48
Sorry, there's a typo in my quotation that I just sent:
The requirement for 9005 MHz pulse modulation in ENV 50204 was replaced by
800-960 MHz
and 1.4-2.0 GHz, 80% amplitude modulation in Amendment 1:1998 of EN61000-4-3.
9005 MHz should have been 900 + - 5 MHz.
2.806 I need to throw my blue copy of the FCC rules away.
Thanks,
Michael Cantwell, PE, NCE
Flextronics International
EMC Laboratories
762 Park Avenue
Youngsville, NC 27596
Tel: (919) 554-0901
Fax: (919) 556-2043
---
This message is from the
Hi Group
I hope some one can help me find the proper authority and regulations
for Poland to type approve certify a DSS device in the ISM 2.4Ghz range
..I am at a dead end and any help would be
appreciated.
Frank
---
This message
Chris,
Unfortunately I don't have a copy of A1 at hand. Please allow me to quote a
text from an article in EE July 2000, p. S-55:
The requirement for 900+/-5 MHz pulse modulation in ENV 50204 was replaced by
800-960 MHz and 1.4-2.0 GHz, 80% amplitude modulation in Amendment 1:1998 of
Buy the way, in my opinion, the line about its only out in two
places and by 4 dB is a slipper slope. Sales guys are forever trying to use
that to get the product out to the street - hey who's going to catch us its
only two frequencies. The next thing that happens is that you're on the next
Bravo Robert - you're right on the mark.
Dan Kinney
Horner APG
-Original Message-
From: Loop, Robert [SMTP:rl...@hnt.wylelabs.com]
Sent: Wednesday, October 25, 2000 11:58 AM
To: tgr...@lucent.com
Cc: emc-p...@majordomo.ieee.org
Subject: RE: Got another beef about an NRTL
Doug,
I ran into a problem in 1990 where we needed to add a primary fuse to a brick
power supply, without changing the circuit board or the case. We had two holes
in the circuit board where we could install a pigtailed fuse if we could find
one that would meet UL and SEMKO requirements. (SEMKO
Do they have the same modulation parameters? I always assumed that the
800-960Mhz tests were pulse modulation tests using 200Hz, 50% duty cycle
square waves. If not, then I'm just as confused as you are.
-Original Message-
From: Barry Ma [SMTP:barry...@altavista.com]
Sent:
Thank you, Robert, for providing information that Wyle accepts other NRTL's
test reports; however, I note your term ...typically will accept I,
therefore, infer, that Wyle reserves the right to not accept whenever, for
whatever reason, this warrants. Also, it would be helpful if you
47 CFR 2.806(c)(3), (4), and (5) addresses this issue.
(3) Any digital device may be operated at the manufacturer's facilities
during development, design or preproduction states for evalutaion or product
performance and determination of customer acceptability.
(4) extends (3) to include
On Wed, 25 October 2000, jestuckey wrote:
... [editted by BM]
My recommendation would to include the following text (in a conspicuous font
and type set) in all documentation sent with an evaluation or test package,
regardless of the quantities or receiving agent :
This device has
Hi Tania,
At Wyle Laboratories (one of the many NRTL's), we typically will accept test
data from another NRTL. Our assumption is that other NRTL demonstrated
proficiency to OSHA requirements and probably many others (A2LA, NVLAP, ISO
Guide 25, etc.), hence their test data is assumed to be
In my understanding of FCC rules, your beta unit with a not for sale' sticker
on it has no obligation to be compliant with Part 15B limit even if 15 dB above.
Barry Ma
On Wed, 25 October 2000, Mike Morrow wrote:
What are the rules regarding a piece of equipment that is
Mike,
You're in the right neighborhood, I think if you refer to 47 CFR part 2.803
section 2 paragraphs iv v, you'll get the answers you need. There are
clear stipulations noted on when a product which is non-compliant can be
taken outside the manufacturer's facility for evaluation and is so what
What are the rules regarding a piece of equipment that is being beta tested
(not for sale, not being offered for sale) that does not currently comply
with Part 15B limits? Everything I've read (47CFR Part 2.803) revolves
around marketing and sales of the equipment, but nothing about equipment
Just for clarification on when or when you can't sell stuff.
Couple of paragraphs from CFR 47
2.803 Equipment requiring /Commission approval
A) Equipment can't be sold
B) paragraph a) doesn't prohibit conditional sales where
delivery is
Hi group,
Thanks for all replies in respond to my question on the Amendment 1 of
EN61000-4-3 a few days ago. But there is another unclear issue left with the
A1. Please help.
I think the intention of A1 is to simulate the interference from near cell
phones. That's why A1 has two frequency
47 CFR Ch. I (10-1-98 Edition) § 2.803
§ 2.803 Marketing of radio frequency devices prior to equipment
authorization.
(a) Except as provided elsewhere in this section, no person shall sell or
lease, or offer for sale or lease (including advertising for sale or lease),
or import, ship, or
Tania,
I don't think safety is a matter of pleasure and convenience. However, I do
look for value in whatever product or service I purchase for myself and on
my employers behalf.
If any supplier is going to cost our company more money and time to market,
we need to know a sound engineering
Hello members,
It appears that in Saudi Arabia DTMF tones are used instead of FSK
signalling for caller id.
This is similar to ANI (automatic number identification) signalling used on
T1 (CAS lines).
It could be that Saudi Arabia use Wink Start on their analogue lines.
I need to know if this is
I'm honest. I'll be the first to admit it.
Previous beef with NRTL and the fuse issue is resolved.
It's my fault. I don't know who said they had basically
no sympathy but I liked that answer. Kept me on my toes.
Anywho, CoA for recognition of power supply was with a
48vdc branch circuit
We had a poll on this forum awhile ago which essentially asked would
we accept self certified parts. The answer was pretty distinctly no, and I,
speaking only for myself, haven't change my perception one iota.
A manufacture essentially telling me - Don't worry it works, trust
me!
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