Re: New EU regulations - civil aviation
This is not so. Many aircraft now have personal 12v ports under each seat for personal electronic devices. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Sunday, Sep 15, 2002, at 10:28 US/Pacific, Ken Javor wrote: The point is that personal electronics carried on board an aircraft interact with the aircraft ONLY via the radiated emissions route. --- 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: New EU regulations - civil aviation
I read in !emc-pstc that Ken Javor wrote (in <0h2h0068wpv...@mtaout06.icomcast.net>) about 'New EU regulations - civil aviation' on Sun, 15 Sep 2002: >We are getting off subject, in that the CISPR requirements listed below >don't apply to avionics, only to the personal electronics people carry on >board. I thought we were discussing your very restricted 'definition' of immunity. However, I don't think we really disagree very much on the actual issues, just a bit on the terminology. -- 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"
Re: New EU regulations - civil aviation
We are getting off subject, in that the CISPR requirements listed below don't apply to avionics, only to the personal electronics people carry on board. However, the real issue is not unique to CISPR, or DoD, or RTCA/DO-160 or the European equivalent. It has to do with how you control undesired electromagnetic interactions. I have a slide which describes this graphically, which I can send directly to anyone interested, but in keeping with forum rules, I am not broadcasting an attachment. What the side does show is that radiated emissions requirements control interference to antenna-connected radio receivers. Radiated immunity requirements impose minimum operational requirements on ordinary (non-radio) electronics when in close proximity to an intentional rf transmission. The point is that personal electronics carried on board an aircraft interact with the aircraft ONLY via the radiated emissions route. Mr. Woodgate is certainly correct that if antenna port immunity requirements are not adequately administered, then aircraft functions relying on radio reception are unnecessarily endangered. I am familiar with US DoD requirements levied on antenna ports. Perhaps someone else on the forum can speak to similar but non-DoD requirements. -- >From: John Woodgate >To: emc-p...@majordomo.ieee.org >Subject: Re: New EU regulations - civil aviation >Date: Sat, Sep 14, 2002, 11:53 PM > > > I read in !emc-pstc that Ken Javor wrote > (in <0h2g00dsl78...@mtaout02.icomcast.net>) about 'New EU regulations - > civil aviation' on Sat, 14 Sep 2002: > >>Immunity in the sense used in the EMI world excludes the mechanism by which >>an unintentional emission causes rfi. > > The whole object of most CISPR standards is to prevent unintentional > emissions causing RFI. While most of them deal only with the limitation > of emissions, CISPR 14-2, 20 and 24 include immunity requirements. In > the case of CISPR 20, the immunity requirements apply to receivers. > > What IS excluded from 'immunity' is on-channel interference with > receivers, since the effects of this depend very greatly on things such > as the type of modulation used for the wanted signals. > -- > 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" > --- 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: New EU regulations - civil aviation
I read in !emc-pstc that Ken Javor wrote (in <0h2g00dsl78...@mtaout02.icomcast.net>) about 'New EU regulations - civil aviation' on Sat, 14 Sep 2002: >Immunity in the sense used in the EMI world excludes the mechanism by which >an unintentional emission causes rfi. The whole object of most CISPR standards is to prevent unintentional emissions causing RFI. While most of them deal only with the limitation of emissions, CISPR 14-2, 20 and 24 include immunity requirements. In the case of CISPR 20, the immunity requirements apply to receivers. What IS excluded from 'immunity' is on-channel interference with receivers, since the effects of this depend very greatly on things such as the type of modulation used for the wanted signals. -- 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"
Re: harmonic current on inverters for industrial uses in Japan
On Thu, 12 Sep 2002 08:57:51 -0600, "POWELL, DOUG" wrote: > I am searching for an English language version of a report writtne in > Japanese, I already have the title translated: > > "Calculation methods of harmonic current on inverters for industrial uses." > JEM- TR 201 > > Can enayone help with location of this report in English? It seems there is no English version of JEM-TR 201 at least at this time. Catalogue of translated JEM/JEM-TR documents is available at http://www.jema-net.or.jp/Japanese/jem/jem_eng.htm, but it seems none of them are available online anyway. You may want to concact JEMA for more information. Only for information - Japanese JEM-TR 201 is available online at: http://www.jema-net.or.jp/Japanese/jem/jem_handou.htm Regards, Tom -- Tomonori Sato URL: http://member.nifty.ne.jp/tsato/ --- 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"
