Agreed on the tailoring and it has to be that way. As I have often said about the IRS (Internal Revenue Service in the US), you never ever want to ask the IRS for a tax explanation because then you will run into the danger of knowing for certain. : )
Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651-778-6336 Fax: 651-778-6252 ================================= "Steve Ferguson" <[email protected]> wrote on 08/29/2011 05:59:46 AM: > From: > > "Steve Ferguson" <[email protected]> > > To: > > <[email protected]> > > Cc: > > <[email protected]>, "Mike Violette" <[email protected]> > > Date: > > 08/29/2011 05:59 AM > > Subject: > > RE: RE102 Vertical Ground Plane > > Bob, > > I tend to agree that to pick and choose may not the best approach. > Tailoring is supported by the standard and I believe that includes > taking necessary steps to properly evaluate the test article. This > includes adjustments of limits, employing transducer options and > configuring for unique/difficult installation simulation. The more > tailoring that is incorporated, the more demanding for detail in the > report so the approach taken is well documented. > > Since the RE102 reference indicates to maintain the same basic test > setup I believe that we have to take that as tailoring is allowed. > > Steven G. Ferguson, iNCE > Executive V.P. > [email protected] > V 301-216-1500 x 112 > C 240-401-7177 > F 301-216-1590 > > Please check our website (www.wll.com) for Wl Academy Seminars or > contact me with any questions! > > From: [email protected] [mailto:[email protected] <mailto:[email protected]> ] > Sent: Monday, August 29, 2011 6:11 AM > To: Steve Ferguson > Cc: [email protected] > 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" <[email protected]> > > To: > > <[email protected]> > > Cc: > > "Mike Violette" <[email protected]> > > Date: > > 08/28/2011 03:26 PM > > Subject: > > RE102 Vertical Ground Plane > > > > > > > [image removed] > 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 > [email protected]\ > V 301-216-1500 x 112 > C 240-401-7177 > F 301-216-1590 > > Please check our website (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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
