Hi, is it possible to get a 100 ohm diff stripline impedance using a 4-layer board? I`v tried some asym. stripline calculations - but it seems that it is not possible... http://www.technick.net/public/code/cp_dpage.php?aiocp_dp=util_pcb_imp_stripline_diff Do someone know a 4 layer stack-design routing 100 ohm diff signals as stripline (to reduce crosstalk)? best regards Bernd ------------------------------------------------------------------ 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 technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu