Use of Dipole Antenna's For FCC-A Emissions Testing

2005-08-26 Thread emc-p...@ieee.org 
Hi Group,
 
It's been quite a while since I've done this so I figure I would ping it off
the group for a consensus. Back in the old days, you could use a Dipole
antenna to take radiated emission measurements for frequencies that were
either failing or were close to the limit. Is that still legal for FCC-A
radiated emissions testing? 
 
For background info, by tuning the dipole antenna to the exact frequency, you
were able to obtain a more accurate reading than using a broadband antenna.
Sometimes you would gain a few dB, sometimes you would lose a few dB. 
 
One thing I remember about this that was flakey, was if you did this for a low
end frequency such as 30 Mhz in vertical polarity. At that frequency, the
elements on the dipole antenna seem to be about a mile long. There was no way
to take a vertical reading at that frequency at a height of 1 meter without
breaking the antenna element. You therefore had to raise the antenna above  2+
meters to take the reading.  In horizontal polarity this was not an issue.
 
All comments appreciated.
 
Thanks,
 
Jeff Collins
 
 
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Re: In-house test equipment

2005-08-26 Thread emc-p...@ieee.org 
With respect to Dave's original question:
 
- The equipment does not have to be CE Marked if it is purely
electrical/electronic under LVD/EMCD - but if it were a piece of mechanical
equipment subject to the Machinery Directive then it would have to be CE
Marked under that Directive as the requirements are different!
 
- Regardless of the CE Marking issues, EU workplace safety inspectors will
want to be assured that it is safe, and that will involve the end-users
performing suitable risk assessments. Part of the evidence to be included in
these will be evidence of the standards met. If these are EU Harmonised stds
then there should be no problem, but if these are not EU Harmonised Stds then
there may be further issues to address as US stds are not officially
"recognised" in EU legislation.
 
- Regarding the age of the equipment, it is the date at which it is first
imported into the EU - not the date on which it was manufactured - that is the
significant one, thus 10 year old equipment that is imported at year 10 would
be deemed to be new equipment in this respect.
 
Regards

John Allen

- Original Message - 
From: Stephen Hopkins   
To: drcuthb...@micron.com ; emc-p...@ieee.org 
Cc: jestuc...@micron.com 
Sent: Friday, August 26, 2005 9:08 PM
Subject: RE: In-house test equipment


Our understanding is that if the equipment is being shipped within the same
company…. i.e. shipping from North America factory to Europe factory…. CE
is a non issue and does not apply in this case. 

 

However, for customs, etc. your paperwork should indicate an inter-company
shipment or transfer of equipment and NOT a sale of equipment.  If you are
selling the equipment, comments above do not apply.

 

Further, if the equipment was “legal” in Europe before CE regulations were
introduced… it is still “legal” there now.  

CE introduction did not make equipment, produced prior to the introduction of
CE, suddenly “illegal”.

 

Hope this helps.

 

Kind Regards

 

Stephen Hopkins

Mr Test Equipment

Phone 905-274-6200

E-mail i...@mrtestequipment.com 

 

Mr Test Equipment: Your partner for used and refurbished electronic test and
measurement equipment 

 

http://www.mrtestequipment.com

 

 

 

 


  _  


From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
drcuthb...@micron.com
Sent: August 26, 2005 9:31 AM
To: emc-p...@ieee.org
Cc: jestuc...@micron.com
Subject: In-house test equipment

 

CE Gurus: 

It is my understanding that for in-house test equipment the CE Mark is not
required. We have some in-house designed test equipment that we are sending
>from the U.S. to one of our factories in Europe. 

*   What is needed to get a unit through customs? 

 

*   What EU safety regulations do we still need to meet? 

 

*   Any other advise is welcomed. 

 

  Dave Cuthbert 
  Micron Technology 

 

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RE: In-house test equipment

2005-08-26 Thread emc-p...@ieee.org 
Our understanding is that if the equipment is being shipped within the same
company…. i.e. shipping from North America factory to Europe factory…. CE
is a non issue and does not apply in this case. 

 

However, for customs, etc. your paperwork should indicate an inter-company
shipment or transfer of equipment and NOT a sale of equipment.  If you are
selling the equipment, comments above do not apply.

 

Further, if the equipment was “legal” in Europe before CE regulations were
introduced… it is still “legal” there now.  

CE introduction did not make equipment, produced prior to the introduction of
CE, suddenly “illegal”.

 

Hope this helps.

 

Kind Regards

 

Stephen Hopkins

Mr Test Equipment

Phone 905-274-6200

E-mail i...@mrtestequipment.com 

 

Mr Test Equipment: Your partner for used and refurbished electronic test and
measurement equipment 

 

http://www.mrtestequipment.com

 

 

 

 

  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
drcuthb...@micron.com
Sent: August 26, 2005 9:31 AM
To: emc-p...@ieee.org
Cc: jestuc...@micron.com
Subject: In-house test equipment

 

CE Gurus: 

It is my understanding that for in-house test equipment the CE Mark is not
required. We have some in-house designed test equipment that we are sending
>from the U.S. to one of our factories in Europe. 

*   What is needed to get a unit through customs?

 

*   What EU safety regulations do we still need to meet?

 

*   Any other advise is welcomed.

 

  Dave Cuthbert 
  Micron Technology 

 

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In-house test equipment

2005-08-26 Thread emc-p...@ieee.org 
CE Gurus: 

It is my understanding that for in-house test equipment the CE Mark is not
required. We have some in-house designed test equipment that we are sending
>from the U.S. to one of our factories in Europe. 

*   What is needed to get a unit through customs?

*   What EU safety regulations do we still need to meet?

*   Any other advise is welcomed.


  Dave Cuthbert 
  Micron Technology 


 This message
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Re: CE DoC question regarding WEEE and RoHS

2005-08-26 Thread emc-p...@ieee.org 
Doug

A reminder - CE Marking and the related EC DoC is only needed  for those
Directives where the text thereof states that these are SPECIFICALLY
required.

If there is no such requirement in the text of a Directive or the equipment
is outside the scope of that Directive, then - in fact - the CE Marking must
(legally!) NOT be applied in respect of that Directive, although  there is
probably nothing to stop you actually making a relevant DoC to relevant
standards which are harmonised under that Directive (but not to the
Directive itself).

Regards

John Allen

- Original Message - 
From: "C N" 
To: 
Sent: Thursday, August 25, 2005 4:25 AM
Subject: CE DoC question regarding WEEE and RoHS


> A simple question that has caused a big discussion.
>
> Since the CE DoC is used to declare all the pertinent European directives
> to which a product complies and since WEEE and RoHS are also European
> directives, then CE DoCs should list at least the WEEE directive as of now
> and additionally the RoHS directive by next summer (or now if your
products
> to comply with RoHS now).
>
> Yes or no?
>
> Regards, Doug McKean
>
> 
> This message is from the IEEE Product Safety Engineering Society
> emc-pstc discussion list.Website:  http://www.ieee-pses.org/
>
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>
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>
>
> -- 
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RE: Short range device to Japan

2005-08-26 Thread emc-p...@ieee.org 
Dear Daniel,

 

We are an accredited laboratory for Japan and other countries. Please contact 
me of line and I will be pleased to send you detailed information.

 

With Kind Regards

 

Henry Rutjes

Manager Sales & Liaison 

 

*  Telefication bv

 Edisonstraat 12 A

  6902 PK Zevenaar

  The Netherlands

*  + 31 316 583 180

 *  + 31 316 583 137

*  + 31 651 182 400 

*  hrut...@telefication.com

*  http://www.telefication.com/

VOIP: hrutjes@telefication via skype

 

  _  

From: Daniel Liang [mailto:daniel_liang_...@yahoo.com] 
Sent: donderdag 25 augustus 2005 11:41
To: emc-p...@ieee.org
Subject: Short range device to Japan

 

Dear all, 

 

Could anyone can tell me where I can get the information about the radio and 
EMC requirements of short range (low power) radio to Japan. Thanks.

 

Regard,

 

Daniel.

 

 

  _  

Do You Yahoo!?
  捇誥轎煤G蚘眊ㄜ笢弊郔轎煤滅馮毀嶼僵閉湮蚘眊 
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Re: Update of EU Standards

2005-08-26 Thread emc-p...@ieee.org 
fdev...@assaabloyitg.com wrote (in 
) 
about 'Update of EU Standards', on Thu, 25 Aug 2005:

>We have asked ETSI several times, with no response, if there is a 
>document citing new testing requirements for each standard update.  The 
>alternative is not pretty; we would need to find a copy of each old 
>standard and relevant referenced normative ones, our products have been 
>tested to, and compare each with the current standard.

That is indeed the case, if you want to do it in-house. But if you use a 
test house or consultant, they should be able to advise you, because 
it's their job also to know what the changes are.

They have, in principle, to do what you describe, but information from 
test house trade associations, and, in some cases, participation in the 
standards-making process, make it rather easier for them.
-- 
Regards, John Woodgate, OOO - Own Opinions Only.
Deadlines are 90% of deadliness.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk


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