In a message dated 3/27/2003 8:34:58 AM Central Standard Time, [email protected] writes:
Mark mentioned reports, a paper trail...or is it? Vendors doing the EMC/EMI ?, who might a vendor be for say IBM or Dell? would think the mfr'r would have an associate there during testing like most of us do. Seems it would be easy to look at the report, >from which test lab did it, are they accredited? if yes, then there shouldnt be any questions.. only thing I see, maybe Disparity, as readings can be differnet from lab to lab. these days its ship now...or not at all.. and barely passing for PC's, since its class B may be enough for the PC companies. Richard, Hi Richard, you hit some key points.. There should be records... and it should show how a manufacturer guarantees that all products ship will pass, not just one, one a good day, with the wind behind it.... And, I hasten to add... the EUT should have been exposed to simulated shipping and installation by a user... not a nursemaid ( don't mean to be sexist ). And also, the report should cover how the EUT still passes once the user has done something to it ( that is expected to happen ) I would imagine that a big company would do their own EMI. If things are getting lax, then perhaps a couple of huge fines are in order to make folks take notice. I'm sure that that would help the EMI guy in a company trying to stand behind why those expensive components really are required. Lab to lab variation is getting very small. Interlab studies have helped that. I think the pressure to ship... at the lowest cost is a key factor... Cheers, Derek.
