There has been much discussion on these topics lately, and I just wanted to advise those interested that there is a FREE new BEM product with a beautiful interface and extensive report which includes Zo,Zeven,Zodd,Zdiff,LRCG, and crosstalk coefficients available which can do all of the things being discussed of late in this forum. It has been benchmarked against numerous SI tools such as Ansoft and comes up strong. You should check it out. http://www.interactive-products.com Nicklas ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu