I have received some email from people that don't know where to find my Technical Tidbit this month as I forgot to mention it in the original email. The article is linked from the picture of the experimental setup at the bottom of the index page of http://emcesd.com which shows a cable, scope, and plastic bag with coins. Abstract: ESD events between small pieces of metal, such as coins, at low voltages produce intense EMI with bandwidths into the tens of gigahertz. The problem is much worse when an electronic device, such as a mobile phone, is immersed in the coins as often happens. Data is presented to show possible voltages induced into a mobile phone antenna by nearby small metal ESD events. RF front end damage to the receiver is a distinct possibility. (even though there is no direct contact with the ESD events) Doug -- ------------------------------------------------------- ___ _ Doug Smith \ / ) P.O. Box 1457 ========= Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: doug@xxxxxxxxxx \ _ / ] \ _ / Website: http://www.dsmith.org ------------------------------------------------------- ------------------------------------------------------------------ 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