Happy New Year everyone! I been running lots of experiments and taking data over the holidays. The first result of all this activity is my Technical Tidbit for January, 2008. The link to the article is the picture of a spectrum analyzer and two currentprobes at the bottom of the page at http://emcesd.com[1] . This month's Technical Tidbit discusses a method of using a spectrum analyzerwith a tracking generator and a pair of current probes to determine the resonant frequencies of wires and cables. This method can be used to findEMC and other noise problems in equipment. Abstract: A technique for using current probes to measure cable resonances isdescribed. A swept frequency voltage is induced on a cable by one current probe and the resulting current measured using a second one. This technique can be especially useful in troubleshooting EMC emissions problems as well asother noise related problems in equipment designs. This quick and easy method can be applied to a new design for which circuit boards do not even exist yet to avoid EMC and noise problems. The method has many potential uses inside and outside of system enclosures. 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[2] \ _ / ] \ _ / Website: http://www.dsmith.org[3] ------------------------------------------------------- --- Links --- 1 http://emcesd.com 2 mailto:doug@xxxxxxxxxx 3 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 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