Hi SughiRam-- I would start by setting your sweeping type to something other than Linear, but you should contact your local Mentor support engineer for more information. Mentor support engineers are very good at solving these types of problems. --Pat -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of SughiRam P. Sent: Wednesday, December 19, 2012 1:33 AM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Non Causality problem in HyperLynx Touchstone Viewer Hi, I am getting non-causal error while I am trying to extract S - parameter model from linesim. My initial settings are, Min Freq - 0.1 MHz Max Freq - 1000 MHz Sweeping Type - Linear Number of Points - 5000 (I have varied it from 1000 to 5000) Can anyone help me to sort it out? Please find the below image for more information. -- THANKS AND REGARDS SughiRam P. +91 8807357785 ------------------------------------------------------------------ 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 forum is accessible at: http://tech.groups.yahoo.com/group/si-list 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 ------------------------------------------------------------------ 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 forum is accessible at: http://tech.groups.yahoo.com/group/si-list 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