You are probably right, but in my mind it is still not clear and I don't
think you can talk about "unwritten" and "implying" as a truth. It always
bothers me when a standard which obviously can be clear is not. Perhaps its
replacement, 62479, will be clearer. The other generic standard, 62311, is
very clear and 62311 deals with equipment with power much greater the 20 mW
and it still applies to non-intentional radiators.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
==============================================================
"Charlie
Blackham"
<charlie@dheanisu To
lis.com> <[email protected]>
<[email protected]>
07/22/2009 05:48 cc
AM
Subject
RE: [PSES] EN50371:2002
Please respond to
<Charlie@dheanisu
lis.com>
Rob
I believe that EN 50371 is only applicable to intentional transmitters.
EN 50371 is applicable from 10 MHz, but EN 62311 is applicable from 0 Hz.
Section 5.2 of EN 50371 discusses how to test "....transmitters intended
for use with external antennas....." - the unwritten alternative being
transmitters with integral antenna. There's also a big frequency range
where radiating 20mW average / 20W peak is going to fail class A/B
emissions limits by some margin - implying product would be covered by RF
spectrum spec.
Regards
Charlie
From: Robert Heller [mailto:[email protected]]
Sent: 22 July 2009 11:00
To: [email protected]
Subject: Re: [PSES] EN50371:2002
Steve, as you are aware, the standard 50371 is a generic EMF standard which
covers equipment not covered by a product or product-family standard (whose
power does not exceed 20 mW). The product standards that I am aware of
cover EAS, RFID, household appliances, mobile phones, wireless networks,
basestation transmitters, and AC transmission lines. Equipment that may
fall into the low-power standard could be localized TV transmitters or
wireless microphones.
The standard is not clear but I believe it applies to both intentional and
non-intentional radiators. There is a "companion" generic standard, EN
62311:2008, that covers equipment not covered by 50371 (i.e., equipment
greater than 20 mW) and it clearly states on page 5, "This standard is
intended to cover both intentional and non-intentional radiators".
EN 50373:2004 will be replaced by EN 62479 whose FDIS is expected to be
issued this fall. EN 62311:2008 has replaced EN 50392:2004.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
============================================================
"Steve O'Steen"
<Steve.OSteen@ac
stestlab.com> To
Sent by: <[email protected]>
[email protected] cc
g
Subject
EN50371:2002
07/21/2009 12:55
PM
All,
Those of you who have access to this standard or are already familiar with
this standard, I would like to know what type of equipment would this be
applicable? Is this intended for all devices or only those with an
intentional radiator? This is a harmonized standard for the LV Directive
as well as the R&TTE Directive. I’ve got my opinion regarding the
applicability of this standard but I would appreciate input from others.
Thanks in advance,
Steve O'Steen
Director, EMC
Advanced Compliance Solutions, Inc.
[email protected]
770-831-8048 ext. 210
www.acstestlab.com
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