Hello All, I am trying to measure the esl of a ceramic capacitor. I have a test board of 2"x 2" for this. I have SMA connectors connected to two sides of the test board. Now to extract the esl of the capacitor, is it best to measure the S11 or S21. Given that S21 gives lesser measurement errors does it still make sense to measure S21 when the two connectors are 2" apart? thanks in advance, virendra __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail ------------------------------------------------------------------ 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