And Figures 2 and 3 of the Figures 1 through 5 clearly show a vertical back plane with the tabletop horizontal ground plane bonded to it (or at least it implies a vertical back plane). It is either a vertical back plane or the floor back plane bent up at a 90 degree angle. If there wasn't any confusion since 1993 then there should have been. : )
The equipment I have is tabletop equipment to be mounted below the water line (i.e., below deck). The reference is to Figures 1 through 5 (all of them), not just Figure 1. Bob Heller St. Paul, MN 55107-1208 Tel: 651-778-6336 Fax: 651-778-6252 ================================= emc-p...@ieee.org wrote on 08/29/2011 01:13:33 PM: > From: > > Ken Javor <ken.ja...@emccompliance.com> > > To: > > Untitled <emc-p...@ieee.org> > > Date: > > 08/29/2011 01:17 PM > > Subject: > > Re: RE102 Vertical Ground Plane > > Sent by: > > emc-p...@ieee.org > > This is a recap and expansion on my original response on this > subject, which clearly didn’t take. > > Figures 2 & 3 are about the tabletop set-up, as per my original post > and that below from WL. The reference in MIL-STD-461 RE102 about > the set-up says, verbatim: > > “5.17.3.3 Setup. > > The test setup shall be as follows: > > a. Maintain a basic test setup for the EUT as shown and described in > Figures 1 through 5 > and 4.3.8...” > > Figure 1 shows the required minimum absorber treatment in the test > chamber. You don’t get to “pick and choose” the parts of the > standard that are applicable. It’s “and”, not “or.” > > And these figures were all brand new in MIL-STD-462D (1993), and are > unchanged since then. > > To my knowledge, there has been no confusion about this topic since 1993. > > > Ken Javor > > Phone: (256) 650-5261 > > > From: <rehel...@mmm.com> > Date: Mon, 29 Aug 2011 05:16:59 -0500 > To: <emc-p...@ieee.org> > Subject: Fw: RE102 Vertical Ground Plane > > > > From: > > Robert E. Heller/US-Corporate/3M/US > > To: > > "Steve Ferguson" <ste...@wll.com> > > Cc: > > emc-p...@ieee.org > > Date: > > 08/29/2011 05:11 AM > > Subject: > > Re: RE102 Vertical Ground Plane > > > > Thanks Steven. that was my take as well. The problem comes in > > because the RE-102 procedure references the Figures and a reference > > is a reference unless it states that portions of the reference are > > to be ignored. If we are allowed to start to "pick and choose" the > > parts of the procedures or references that we like or dislike then > > there is no sense in writing the procedure. > > > > Bob Heller > > 3M EMC Laboratory, 76-1-01 > > St. Paul, MN 55107-1208 > > Tel: 651-778-6336 > > Fax: 651-778-6252 > > ================================= > > > > > From: > > "Steve Ferguson" <ste...@wll.com> > > To: > > <rehel...@mmm.com> > > Cc: > > "Mike Violette" <mi...@wll.com> > > Date: > > 08/28/2011 03:26 PM > > Subject: > > RE102 Vertical Ground Plane > > > > Bob, > > > > I reviewed the test configuration MIL-STD-461F figures (Figure 1 and > > Figure 2) you mentioned and in my opinion it was not the intent to > > imply a vertical ground plane. The figure are carry-overs from > > early revisions and the goal was to provide a generic sketch of the > > ground plane layout. The vertical portion represents the anechoic > > chamber wall (note that there is no RF absorber in the sketch). > > Reading the associated text, there is no mention of a vertical plane. > > > > If a vertical plane were incorporated, the desired effect for the > > anechoic material would be negated. I believe that the generic > > sketch used in the standard should be used for layout guidance only. > > > > Please contact me if you want to discuss or need more information. > > > > Steven G. Ferguson, iNCE > > Executive V.P. > > Washington Laboratories, Ltd > > 7560 Lindbergh Drive > > Gaithersburg, MD 20879 > > ste...@wll.com\ > > V 301-216-1500 x 112 > > C 240-401-7177 > > F 301-216-1590 > > > > Please check our website (www.wll.com <www.wll.com> ) for Wl > Academy Seminars or > > contact me with any questions! > > - > ---------------------------------------------------------------- > 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 <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at > http://product-compliance.oc.ieee.org/ <http://product-compliance.oc.ieee.org/> > Graphics (in well-used formats), large files, etc. can be posted to that URL. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://listserv.ieee.org/request/user-guide.html <http://listserv.ieee.org/request/user-guide.html> > List rules: http://www.ieee-pses.org/listrules.html <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org> > David Heald <dhe...@gmail.com> > - > ---------------------------------------------------------------- > 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 < > emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at > http://product-compliance.oc.ieee.org/ <http://product-compliance.oc.ieee.org/> > Graphics (in well-used formats), large files, etc. can be posted to that URL. > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://listserv.ieee.org/request/user-guide.html <http://listserv.ieee.org/request/user-guide.html> > List rules: http://www.ieee-pses.org/listrules.html <http://www.ieee-pses.org/listrules.html> > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org> > David Heald <dhe...@gmail.com> - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>
