For conflict-of-interest reasons, I cannot provide specific information for the conduct of tests to this standard. Perhaps this will help.
There is a 'custodian' for each U.S. military standard, typically found within the first two or three pages. This person or organization should be able to point to an individual or facility that is responsible for the document that may be able to provide an "official ruling". It is important that any ambiguity in test requirements be resolved prior to submittal to a DoD test facility (e.g., Aberdeen), as you do not want to deal with the whims of a government test lab. luck, Brian > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of Derek > Walton > Sent: Wednesday, April 25, 2007 1:50 PM > To: Ken Javor > Cc: [email protected]; 'IEEE EMC Discussion Group' > Subject: Re: MIL HBK 704-8 distortion factor > > HI Ken, > > there are a couple of things in these three paragraphs in your email > that still cause me issues: > > I'm tasked with 704E, so F, if its better to use... wont help me, I'm > still stuck. > > The ripple voltage... is this measured with an RMS meter, OR, > is it the > root sum of the squares of the components as measured by a spectrum > analyzer? > > The third paragraph is where I'm not sure what the heck these > guys were > thinking. The requirement seems to vacillate between setting up the > quality of the power delivered to the EUT so you can determine it > functions OK with the ripple. But then you get the impression > that they > are trying to determine what effect the EUT has on bus ripple. > > Setting up the ripple on the power is fairly simple, but it IS power > supply dependent when you switch from the setup resistor to > the real EUT. > > Determining the influence of the EUT on the bus ripple is > dramatically > influenced by the power supply impedance, BW etc. Non of which is > controlled. > > I guess I'd like to know who I can direct questions to to get > "official" > answers... > > Thanks as always Ken for replying! > > Cheers, > > Derek. - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
