MIL-STD-461D/E/F specifically state no relation between RS & RE: “There is no implied relationship between this requirement and RS103 which addresses radiated susceptibility to electric fields. Attempts have been made quite frequently in the past to compare electric field radiated emission and susceptibility type requirements as a justification for deviations and waivers. While RE102 is concerned with potential effects with antenna-connected receivers, RS103 simulates fields resulting from antenna-connected transmitters.”
Ken Javor Phone: (256) 650-5261 ________________________________ From: Cortland Richmond <[email protected]> Reply-To: <[email protected]> List-Post: [email protected] List-Post: [email protected] List-Post: [email protected] Date: Fri, 30 Oct 2009 19:54:56 -0400 To: <[email protected]> Subject: RE: Where does 3V/m & 10V/m in RI come from? RE automotive standards, think about the multitude of susceptible devices now found in a automobiles, many on a 2-wire, AC coupled data bus. So when I drive by transmitting at 500V/m (near field), what happens? Hmm, IIRC MIL-STD-462d said the radiated susceptibilty level was selected by reference to radiated emissions. I had to take a 1.5 KW Amateur linear to work a few weeks ago so our lab could reach 100V/m. But they don't normally do RS testing.. Cortland KA5S ----- Original Message ----- From: Bill Owsley <mailto:[email protected]> <mailto:[email protected]> To: MarkoRadojicic <mailto:[email protected]> <mailto:[email protected]> ;Ken Javor <mailto:[email protected]> <mailto:[email protected]> ;[email protected];Gary Wong <mailto:[email protected]> <mailto:[email protected]> Sent: 10/30/2009 6:58:17 PM Subject: RE: Where does 3V/m & 10V/m in RI come from? The automotive guys are having a bit of a chuckle. Their immunity levels are somewhat higher due to field surveys of what field strengths the cars might be driven through. At one point a few years ago one car manufacturer was asking for 600 V/m. I think they settled on 200 V/m. Do car drivers complain more about their cars than the house stereo?? - Bill In the event of a national emergency, click on the following links to provide directions to your duly elected mis-representative. http://www.usa.gov/Contact/Elected.shtml or... https://writerep.house.gov/writerep/welcome.shtml http://www.senate.gov/general/contact_information/senators_cfm.cfm --- On Fri, 10/30/09, Gary Wong <[email protected]> wrote: From: Gary Wong <[email protected]> Subject: RE: Where does 3V/m & 10V/m in RI come from? To: "Radojicic, Marko" <[email protected]>, "Ken Javor" <[email protected]>, [email protected] Date: Friday, October 30, 2009, 5:24 PM Marko: I remembered the RI levels were based on field strength survey of the populated areas close to the radio transmitter towers. There are lots of field survey papers about the RI limits presented to and reviewed by the committees for ballot. One famous case was the kitchen fan playing radio music because the house close to the AM transmitter tower was exposed to 10V/m field strength. Cheers, Gary Wong Technical Leader H/W Engineering [email protected] <http://us. c396.mail.yahoo.com/mc/[email protected]> <http://us.mc396.mail.yahoo.com/mc/[email protected]> Direct: 925.474.2244 Phone: 925.474.2200 Fax: 925.251.0642 ---------- Privileged/Confidential Information of Belden may be contained in this message. If you are not the addressee of this message, you may not read, copy or use this message, or deliver this message to anyone. In such event, you should destroy the message and kindly notify the sender by reply e-mail. It is understood that opinions or conclusions that do not relate to official business of Belden are neither given nor endorsed by Belden. ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Radojicic, Marko Sent: Friday, October 30, 2009 12:59 PM To: Ken Javor; [email protected] Subject: RE: Where does 3V/m & 10V/m in RI come from? Hi Ken, From your response, you probably donâ•˙t know Alvin very well if at all. You can say a lot of things about Alvin (and I probably have J ) but embarrassing the profession isnâ•˙t one of them. But backing off from the personal issues, your response didnâ•˙t really address the question of where the limits come from. Having participated in standards making committees, I would have to say that there is as much political posturing as engineering going on. I seriously doubt that there is any scientific investigation that points to 1, 3, 10 V/m providing adequate protection for certain environments. I always assumed that the standards committee picked these numbers because they looked good on a logarithmic chart. It would be informative if someone on the forum was actually a member of the original CISPR committee and could refute my [perhaps] jaded experience. â•œMarko - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected] <http://us.mc396.mai .yahoo.com/mc/[email protected]> <http://us.mc396.mail.yahoo.com/mc/[email protected]> > All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc! . can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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