In message <[email protected]>, dated Thu, 27 Apr 2006, Alex Horvath <[email protected]> writes
>In my experience it's sort of a no-brainer to have a seperate chassis >ground. My question is would you expect that the problems we are having >could be caused by the common ground implementation? It's very likely. The digital 'ground' is sharing its disturbing energy with the output cable in common-mode. Just modify a sample to have a 'clean' ground on the output side of the port and see if it helps. In EMC, a gram of test can outweigh a tonne of theory. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
