Well we are already into -461F, so don't burn too much midnight oil on -461E. But for the questions you raised, there are no differences, and aren't likely to be for some time. These requirements have not changed materially since 1993, and no change in the spectrum coverage of concern in your post since 1967. Ken Javor
Phone: (256) 650-5261 > From: John Woodgate <[email protected]> > Date: Thu, 3 Feb 2011 19:17:02 +0000 > To: <[email protected]> > Subject: Re: EMC spectrum 'gaps' > > In message <c97056aa.a6061%[email protected]>, dated Thu, 3 > Feb 2011, Ken Javor <[email protected]> writes: > >> MIL-STD-461 covers conducted emissions from 30 Hz to 10 MHz for dc >> power. For ac power, it is from twice the power frequency to 10 MHz. >> Not all programs cover the spectrum below 10 kHz. 10 kHz to 10 MHz is >> covered by all military project. >> >> Radiated emissions are covered from 2 MHz to 18 GHz for all programs. >> Some Navy platforms and Army helicopters control radiated emissions >> (electric field) between 10 kHz and 2 MHz. Additionally, some programs >> control radiated magnetic emissions (at 7 cm) between 50 Hz to 100 KHz. >> >> Expecting that DEF-STAN-5941 is not terribly different. NATO STANAGS >> are coordinated with MIL-STDs. > > Thanks. I now have MIL-STD-461E and will learn it for recitation. (;-) > -- > OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk > John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK > Plural: data, criteria, phenomena. Singular: datum (different meaning: use > 'data element' for a single item), criterion, phenomenon. 'Effect' is a noun, > 'affect' is a verb (except in psychiatry). > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://product-compliance.oc.ieee.org/ > Graphics (in well-used formats), large files, etc. can be posted to that URL. > > Website: http://www.ieee-pses.org/ > 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]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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]>
