Dear all, I think, I misunderstood smt about impedance tolerance. Which one is tighter? Which one is harder to control? 50 Ohm +/- 5% or 50 Ohm +/- 10 %. I have read that 10% is much tighter and hard to control. I could not understand the reason. Thanks for your interest. System Design Engineer Vestel Digital Company ------------------------------------------------------------------ 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