I think EMI is dependant on edge rate because the quantity of EMI is in proportion to dV/dt. But I am not sure about whether ringings are significant or not. Anyway, the number of ringing become smaller then the sum of EMI come to small. Good luck. -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of chlee99@xxxxxxxxxxxxx Sent: Wednesday, December 19, 2001 6:14 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Reflection and EMI Hello everyone ! Reflection(or ringing) can be a significant problem in radiated emission. Is this true ? if you have any suggestions, I'd appreciate any comments on this ********************************************** Chunho Lee, SI/EMC Engineer, SAMSUNG ELECTRONICS CO., E-CIM, Management Innovation Team, 416, Maetan-3dong, Paldal-gu, Suwon city, Korea Tel : 82-31-200-3036, Fax: 200-4692 email: chlee99@xxxxxxxxxxxxx ********************************************** ------------------------------------------------------------------ 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 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 ------------------------------------------------------------------ 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 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