Hi all I have a design in Nexxim(ansoft designer) in which there is both S-parameter and Spice models blocks,s parameter blocks all have one port named 'ref ' ,I connect all these ports to ground in shematic,if all models were S parameter when simulating the design we dont have any error ,but if we add a spice model (e.g. LNA model) we have error in simulation (DC continuation...),the problem seems to be the refrence of spice model(?),can you help me about that? Regards Haghtalab ------------------------------------------------------------------ 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 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