Has anyone answered the question of whether or not 61326 has provisions for
a reduction in the field strength at those frequencies?
Lisa
Mike Hopkins
<michael.hopkins@therm To: "'Ken Javor'"
<ken.ja...@emccompliance.com>, "Gordon,Ian"
o.com>
<ian.gor...@edwards.boc.com>, "'IEEE EMC-PSTC GROUP'"
<emc-p...@majordomo.ieee.org>
Sent by: cc:
owner-emc-pstc@majordo Subject: RE: RADIATED
IMMUNITY REQUIREMENTS FOR EN61326
mo.ieee.org
03/03/2003 04:07 PM
Please respond to Mike
Hopkins
I believe the other bands are television broadcast....
M. Hopkins
Thermo KeyTek
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: Monday, March 03, 2003 11:03 AM
To: Gordon,Ian; 'IEEE EMC-PSTC GROUP'
Subject: Re: RADIATED IMMUNITY REQUIREMENTS FOR EN61326
Hazarding a guess. I am not near a spectrum usage chart, but clearly
87-108
is the FM broadcast band, and therefore no one else is transmitting at
these
frequencies, except at very low power. If the other bands listed are also
restricted to broadcasters of a certain power, and you can calculate that
the closest you might ever approach the source would limit you to a 3 V/m
exposure, then the relaxation would make sense. Like I said though, just a
guess.
on 3/3/03 8:01 AM, Gordon,Ian at ian.gor...@edwards.boc.com wrote:
>
> Everybody
> Can you advise me as to whether the same reduction in field strength is
> available when applying the industrial immunity requirements of EN61326
as
> when applying the generic industrial immunity standard EN61000-6-2.
> EN61000-6-2 permits a reduction in field strength from 10 to 3 V/m over
the
> following frequency ranges :
> 87 - 108 MHz
> 174 - 230 MHz
> 470 - 790 MHz
>
> Furthermore, I have never been able to work out why there is a relaxation
at
> these freqs. The wording from table 1 of EN61000-6-2 is ....10V/m........
> "Except for the ITU broadcast frequency bands (given above) where the
level
> shall be 3V/m".
> Can anyone provide the "logic" behind this clause? (I'm sure there is
> some!).
>
> Thanks
> Ian Gordon
>
> _____________________________________________________________________
> This e-mail has been scanned for viruses by the WorldCom Internet Managed
> Scanning Service - powered by MessageLabs. For further information visit
> http://www.worldcom.com
>
> -------------------------------------------
> This message is from the IEEE EMC Society Product Safety
> Technical Committee emc-pstc discussion list.
>
> Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
>
> To cancel your subscription, send mail to:
> majord...@ieee.org
> with the single line:
> unsubscribe emc-pstc
>
> For help, send mail to the list administrators:
> Ron Pickard: emc-p...@hypercom.com
> Dave Heald: davehe...@attbi.com
>
> For policy questions, send mail to:
> Richard Nute: ri...@ieee.org
> Jim Bacher: j.bac...@ieee.org
>
> Archive is being moved, we will announce when it is back on-line.
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieeecommunities.org/emc-pstc
>
--
Ken Javor
EMC Compliance
Huntsville, Alabama
256/650-5261
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: davehe...@attbi.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: davehe...@attbi.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: davehe...@attbi.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
Archive is being moved, we will announce when it is back on-line.
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
