Naftali
The subject virus was not on my system, so I am surprised by your email.
Maybe interscan was reacting to the
subject text.
Thanks Paul J Smith, Teradyne
Naftali Shani nsh...@catena.com on 01/24/2002 04:14:01 PM
To: 'paul_j_sm...@notes.teradyne.com'
I read in !emc-pstc that cherryclo...@aol.com wrote (in 84.222da8c6.298
1a...@aol.com) about 'EN 61000-3-2 applicability and let-outs', on Thu,
24 Jan 2002:
Dear John
I understand the following statements to be true.
Please make corrections / comments where necessary.
1) EN
The IEEE anti-virus scanner just reported this: InterScan has detected a
virus PE_Magistr.B in the file (arguments.exe) in the mail traffic sent to
you by ...
Regards,
Naftali Shani, Catena Networks (www.catena.com)
307 Legget Drive, Kanata, Ontario, Canada K2K 3C8
613.599.6430/866.2CATENA
Fortunate? Good fortune, or bad? Heh!
Cortland
(I didn't write a thing that speaks
For my employer at all;
If anything I say is wrong,
I'm the one to take the fall!)
Pettit, Ghery wrote:
David,
Ideally an OATS should have no ambient signals within 6 dB of the lowest
limit that you intend
Clause 16.4 of CISRP 16-1 has a specification for ambient noise. Clause
5.1.2 of IEEE C63.4:2000 basically says the ambients are to be 6 dB below
the signals. If the site is located anywhere near civilization, you can
forget that. Your customer will probably have to learn to live with the
noise
-Original Message-
From: Alan E Hutley [mailto:nutwoo...@nutwood.eu.com]
Sent: Thursday, January 24, 2002 9:35 AM
To: Emc-Pstc Discussion Group
Subject: Fw: Mil Strd 461 Cand D
- Original Message -
From: Alan E mailto:nutwoo...@nutwood.eu.com Hutley
To: emc-pstc
I can add that there is a Ford vehicular EMC specification, document
ES-XW7T-1A278-AB, that includes a Method RI-112 bulk current immunity test.
(I can send you a pdf on request.)
Regards,
Ed
Ed Price
ed.pr...@cubic.com
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA
Does anyone know:
1) Standards for medical devices in Japan and Australia?
2) Approval procedure for medical devices in Japan and Australia?
Any help/direction would be appreciated.
Thanks,
Mike Cantwell
---
This message is from the IEEE EMC Society
The creation of a FAR using ferrite tiles works using
a resonant system with ferrite tiles. The resonant frequency
is dependent on the thickness of the tiles. At this frequency
the damping is maximized and approx rising at 6 dB/oct .
Standard tiles resonate at 130-150 Mhz.
Has anyone of you
I read in !emc-pstc that jrbar...@lexmark.com wrote (in 200201241322.IA
a22...@interlock2.lexmark.com) about 'Conducted emission testing for
EN55022 - diode + caps', on Thu, 24 Jan 2002:
A50-250nFcapacitor across each rectifier usually works
well.
Those values seem very large compared
If you decide to look into Canada you may also want to check out UltraTech.
They are in Oakville (just a hop from Toronto's Pearson Int'l airport)
http://www.ultratech-labs.com
Cheers!
Jeff Bailey
Compliance Engineering
SST - A Division of Woodhead Canada
Phone: (519) 725 5136 ext. 363
Have you folks heard of a W32.magister virus
There are two (2) variants that I have heard of w32.magister.24876@mm
and w32.magister.39921@mm
Is there any way an infected system with windows 98 can be booted with the
above virus? Is there any available website with
Dear John
I understand the following statements to be true.
Please make corrections / comments where necessary.
1) EN 61000-3-2 only applies to equipment consuming up to 16A/phase, and
there are no mandatory harmonic limits in the EU (yet) for higher-powered
equipment, other than what the
- Original Message -
From: Alan E Hutley
To: emc-pstc
Sent: Thursday, January 24, 2002 5:33 PM
Subject: Mil Strd 461 Cand D
Hi Group
Can anyone tell me or point me to a web site where I can find the difference
between these two standards.
Thank you
Alan E Hutley
EMC Compliance
Hi Group
Can anyone tell me or point me to a web site where I can find the difference
between these two standards.
Thank you
Alan E Hutley
EMC Compliance Journal
www.compliance-club.com
David,
Ideally an OATS should have no ambient signals within 6 dB of the lowest
limit that you intend to use. Now, after everyone has had their laugh and
picked themselves up off the floor, let's look at the practical aspects.
There are very few OATS facilities in the world that meet the
I was hoping someone would be able to answer this more authoritatively than
I can, but if there have been any replies, I missed them. I am aware that
the US FDA imposes a BCI type requirement like MIL-STD-461 CS114. Of course
that is for medical equipment. RTCA/DO-160 imposes a very similar
Chris
Pretty much our response when we say those traces, hence why myself and a
facilities engineer were on a plane a few days
later to visit the installation. I still have the original data, but
unfortunately it is all hard copy. Also it contains
too much confidential information to make
Hi Group,
I hope no one objects to me placing this on this excellent forum.
I am looking for a Test Technician or Engineer to help me run a
pre-compliance lab I have managed to put together. Duties involve mainly EMC
testing to EN55022, EN55024, FCC Part15.
Knowledge of Safety testing to
Hello all,
We are being asked to evaluate ambient noise for a possible rooftop OATS.
Are there any published limits to ambient noise for an OATS location?
Thank you,
David.
David Gelfand
Regulatory Approvals
Kontron Canada
---
This message is from
Hi Richard,
It is a test measurement product used in a telecom environment. So we
often test DC conducted emissions on the 48VDC input to a hodge-podge
combination of EN61326-1(which uses EN 55022 limits), 300386-X and
certain customer specific EMC standards. Some of our customers
reference
Is this a telecommunications product?
if so, then need DC conducted Emissions
to new EU std. 300386.
Done from 20khz to 30mhz.
If product is ITE, then NO DC cond. is needed.
Richard,
-Original Message-
From: Chris Maxwell [mailto:chris.maxw...@nettest.com]
Sent: Wednesday, January 23,
Any value will do (1-20 nF 4 pieces), some experimenting won't do harm ;)))
Gert Gremmen
-Original Message-
From: gunter_j_ma...@embraco.com.br
[mailto:gunter_j_ma...@embraco.com.br]
Sent: donderdag 24 januari 2002 10:52
To: CE-test - Ing. Gert Gremmen - ce-marking and more...;
Hi, Bob -
That depends on whether or not you consider Canada to be the 51st state (as
some do) grins.
The pointer is: ||
||
Kindest regards,||
||
\||/
Kathy M. MacLean\/
President, APREL Laboratories
-EMC-RF
I read in !emc-pstc that Andrew Carson acar...@uk.xyratex.com wrote
(in 3c4fd4e8.31a84...@uk.xyratex.com) about 'EN 61000-3-3 compliant
heater controller', on Thu, 24 Jan 2002:
As much as I can say, was a large number (600+) of switch mode supplies,
installed in such a manner that their front
Gunter,
I discuss this on pages 71-72 of my book, Electronic System Design: Interference
and Noise Control Techniques, published by Prentice-Hall in 1987 (now out of
print, but you might find a copy by searching for the ISBN number
0-13-252123-7). A50-250nFcapacitor across each
Dear Ghery
I don't think I disagree very much with what you said below.
John Woodgate's summary yesterday was most interesting. He analysed the
reasons why harmonic mitigation at system and site level were not being
employed and concluded that:
It is almost axiomatic that the best overall
Dear Rich
Many thanks for your useful analyses.
I was wrong to suggest that the 'computer industry' is in denial about mains
harmonics - I realise that many people in that industry have made and are
making valuable contributions in that field.
But I am sure that the claims that there is 'no
Andrew,
What on earth is that?
You wouldn't happen to have the harmonic spectra for these waveforms
would you? I believe the last time I saw a mains voltage fundamental
struggle so hard to make an impression was during my research days
at Uni when I had an erroneous switching pattern in an
As much as I can say, was a large number (600+) of switch mode supplies,
installed in such a manner that their front
end emc filters were ineffective. It was not on a European or US distribution
distribution and once a simple fix was
in place, near perfect sine waves.
John Woodgate wrote:
I
Hello Amund,
EN 61543 is on the harmonization list 105/30 dated 5.4.2001:
EN 61543:1995
Residual current-operated protective devices (RCDs)household and similar use
- Electromagnetic compatibility
Date of cessation of presumption of conformity of the superseded standard:
Date expired
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in
200201232308.paa21...@epgc264.sdd.hp.com) about 'Harmonic current
emissions', on Wed, 23 Jan 2002:
The additional cost for a PF-corrected SMPS is
not a constant adder; it is proportional to
power output. One must use higher power
Brian,
You will 100% manufacturing tests (assuming they are required) in Appendix D
of your UL Procedure The UL Appendix is in the front of the Procedure, and
before the Section General.
(UL should have called it Prefix rather than Appendix!)
Note that the UL Procedure contains the Appendix
Brian,
The text of IEC/EN 60601-1 does not relate to production testing, but the
General Guidance and Rationale section at the end of the standard covers
this issue under the guidance for Clause 4.1.
The section opens as follows:
In order to ensure that every individually produced item of
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