I once had a situation where we were testing a new system where the peripherals were unchanged since the last test. When things failed we traced it to a missing toroidal ferrite in one of the peripherals. It had been cost- reduced out in spite of numerous "required for compliance" type notes on documents.
Scott B. Lacey On 14 Aug 2008 at 0:00, Cortland Richmond wrote: > A long time ago,in a company far away, I tested a wireless keyfob gadget for > Part 15. We had to add metal tape in the case to reduce the field strength > to Part 15 levels, as we couldn't change the circuit. > > Fast forward a number of years. Lo and behold, it's my old employer in the > Daily Digest! With a noncompliant keyfob gadget! > > Can't say for sure, might not even be the same item, etc -- but I'd guess > some clever engineer noticed the things worked better without copper tape, > and had it removed. Probably got an incentive award! > > Time "arches" on; Hello XM! > > > > > Cortland Richmond > KA5S > > -----Original Message----- > >From: "Conway, Patrick R (Houston)" <[email protected]> > >Sent: Aug 13, 2008 12:22 PM > >To: "[email protected]" <[email protected]> > >Subject: RE: FM Modulator Information > > > >A family member forwarded the below email. > > (I'm pleasantly surprised that they remember my field of work !) > > > >Does anyone on this list subscribe to XM? > > It would be interesting to know the details of the interference > > problem. > >... > > - > ---------------------------------------------------------------- > 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 > - 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
