Re: Cell calibration by EN61000-4-3:2002
Peter wrote: standard requires that a field at each point in a 0.5m matrix be within 6 dB of an empirically identified reference node - except: CONCESSION 1 On p14, Note 2 says that calibration requirements are fulfilled if a maximum of 3% of the frequencies does not meet the 6dB criterion but are at least within the tolerance of -0 to +10 dB. CONCESSION 2 On p15, i) stop the procedure if at least 12 numbers are within 6dB. I have an array of readings of forward power required to create a constant field at each frequency step at each point in the grid. The answer is different depending on the order in which the concessions are applied. Can someone please translate the requirements into a process that I can apply to data in an Excel spreadsheet? Hi, Peter. My understanding is that at least 12 out of the 16 points must normally be -0 to +6 dB. Thus, the test for that frequency stops (Concession 2) when this has been met, and one proceeds to the next frequency. However, per Concession 1, if not all 12 points make it, some being up to +10 dB (but not -0dB), testing continues and at the end of the test, if 3 percent or fewer of the frequencies tested have points up to +10 dB, uniformity may still be claimed. A simple procedure would be to 1. Store each frequency's 16 point scan on one worksheet page and 2. Evaluate them against a -0 to +10dB limit, discarding any outside that range. Stop if you can't get 12 inside this limit; you have some work to do on the chamber. 3. Reevaluate for -0 to +6dB and if 12 points are found, mark the page compliant and go to the next frequency. If you can't get 12 in the -0 to +6dB range then flag the worksheet page and continue to the next frequency. Assuming one percent steps, there are 347 one-percent steps in an 80 to 2500 MHz scan so, if the number of flagged pages is 10 or less, then 4. Continue, stopping only if 5. 11 or more frequencies are flagged, 6. Or the test is done. Cortland Richmond This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Scott Douglas emcp...@ptcnh.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: EN61000-4-3:2002
I read in !emc-pstc that richwo...@tycoint.com wrote (in 846BF526A205F8 4BA2B6045BBF7E9A6A04675B9C@flbocexu05) about 'EN61000-4-3:2002' on Tue, 28 Jan 2003: Can anyone verify that EN61000-4-3:2000 does not contain common modifications to the IEC document - i.e., they are identical? I can't find an issue dated '2000'. The 2002 edition contains no Common Modifications. The standard which it supersedes on 2005-04-01 is EN 61000-4-3:1996 + A1:1998 + A2:2001. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
EN61000-4-3:2002
Can anyone verify that EN61000-4-3:2000 does not contain common modifications to the IEC document - i.e., they are identical? Richard Woods Sensormatic Electronics Tyco International 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: SV: Question about EN61000-4-3:2002
Hello Sandy, I just received a copy and scanned through it. As you had indicated, the core of the standard is the same. The calibration methodology is the same as EN 61000-4-3 1996. Annexes have been provided for rationale for the choice of modulation for tests, a section on the use of anechoic chambers with a discussion on problems caused by ferrite lining of chambers and possible solutions, and a discussion of illumination by the independent windows method. If you test short range devices, EN 301489 is the product standard that specifies radiated immunity testing parameters, including the requirement above 1 GHz. This standard specifies the level and modulation. IEC 61000-4-3 2002 provides the guidance for calibration, set up, execution (with alternatives) and reporting. Best regards, Don Umbdenstock Tyco Safety Products TEPG -Sensormatic -- From: Sandy Mazzola[SMTP:mazzo...@symbol.com] Reply To: Sandy Mazzola Sent: Wednesday, May 29, 2002 5:21 PM To: emc-p...@majordomo.ieee.org; am...@westin-emission.no Subject: Re: SV: Question about EN61000-4-3:2002 File: Sandy Mazzola.vcf.txt Amund, Thank you for your response. Taking a quick look at the 2002 version the only changes I could tell were to do with were some information on using anechoic chambers above 1 GHz and alternative illumination techniques for frequencies above 1 GHz. Have a great day Sandy Mazzola Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.com am...@westin-emission.no 05/29/02 04:30PM Sandy, I have just seen parts of the 2002 version. It seems to be dealing with the technique to calibrate the field strength above 1GHz. There are also some requirements regarding the measuring chamber. Best regards Amund Westin, Oslo/Norway -Opprinnelig melding- Fra: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]Pa vegne av Sandy Mazzola Sendt: 28. mai 2002 21:51 Til: emc-p...@majordomo.ieee.org Emne: Question about EN61000-4-3:2002 To all, I noticed that an EN61000-4-3:2002 just came into effectivity. Can anyone give me the short concise comparison of EN61000-4-3:2002 versus EN61000-4-3:1997. Thank You Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: SV: Question about EN61000-4-3:2002
Amund, Thank you for your response. Taking a quick look at the 2002 version the only changes I could tell were to do with were some information on using anechoic chambers above 1 GHz and alternative illumination techniques for frequencies above 1 GHz. Have a great day Sandy Mazzola Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.com am...@westin-emission.no 05/29/02 04:30PM Sandy, I have just seen parts of the 2002 version. It seems to be dealing with the technique to calibrate the field strength above 1GHz. There are also some requirements regarding the measuring chamber. Best regards Amund Westin, Oslo/Norway -Opprinnelig melding- Fra: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]Pa vegne av Sandy Mazzola Sendt: 28. mai 2002 21:51 Til: emc-p...@majordomo.ieee.org Emne: Question about EN61000-4-3:2002 To all, I noticed that an EN61000-4-3:2002 just came into effectivity. Can anyone give me the short concise comparison of EN61000-4-3:2002 versus EN61000-4-3:1997. Thank You Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Mazzola, Sandy TEL;WORK:(631) 738-5373 EMAIL;WORK;PREF;NGW:mazzo...@symbol.com N:Mazzola;Sandy END:VCARD BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Mazzola, Sandy TEL;WORK:(631) 738-5373 EMAIL;WORK;PREF;NGW:mazzo...@symbol.com N:Mazzola;Sandy END:VCARD
SV: Question about EN61000-4-3:2002
Sandy, I have just seen parts of the 2002 version. It seems to be dealing with the technique to calibrate the field strength above 1GHz. There are also some requirements regarding the measuring chamber. Best regards Amund Westin, Oslo/Norway -Opprinnelig melding- Fra: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]Pa vegne av Sandy Mazzola Sendt: 28. mai 2002 21:51 Til: emc-p...@majordomo.ieee.org Emne: Question about EN61000-4-3:2002 To all, I noticed that an EN61000-4-3:2002 just came into effectivity. Can anyone give me the short concise comparison of EN61000-4-3:2002 versus EN61000-4-3:1997. Thank You Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Question about EN61000-4-3:2002
To all, I noticed that an EN61000-4-3:2002 just came into effectivity. Can anyone give me the short concise comparison of EN61000-4-3:2002 versus EN61000-4-3:1997. Thank You Santo Mazzola Regulatory Engineer Symbol Technologies Inc 1 Symbol Plaza Holtsville, N. Y. 11742-1300 Phone: (631) 738-5373 Fax: (631) 738-3318 E-mail: mazzo...@symbol.com BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Mazzola, Sandy TEL;WORK:(631) 738-5373 EMAIL;WORK;PREF;NGW:mazzo...@symbol.com N:Mazzola;Sandy END:VCARD BEGIN:VCARD VERSION:2.1 X-GWTYPE:USER FN:Mazzola, Sandy TEL;WORK:(631) 738-5373 EMAIL;WORK;PREF;NGW:mazzo...@symbol.com N:Mazzola;Sandy END:VCARD
