I have been writing again, and this month's Technical Tidbit at my website discusses sources of measurement error that can occur internal to oscilloscopes including interchannel crosstalk and other sources of error. Most of my scope articles deal with errors caused by probing techniques external to the scope, so the focus of this article is different. It is on the internals of the scope. Some very popular models of scopes have enough interchannel crosstalk to be an issue with mixed signal measurements (high amplitude signal on one channel, usually digital, and a low amplitude signal on another channel). Abstract: Crosstalk between channels of an oscilloscope can contribute to measurement error. Conditions which can result in crosstalk error as well as signs that measurement error maybe occurring are discussed and recommendations made. To see the article, to go http://emcesd.com where the link to the article is the scope plot picture at the bottom of the main page (after the ~90 other papers, articles, and presentations). 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