Re: [PSES] FCC maximum frequency measurement

2012-07-07 Thread Ken Javor
What does the correct value mean? Unless the field intensity is constant over the aperture of both loops, there won¹t be correlation between different size loops. That was the whole point of the comment about what size sensor to use. It cannot be cavalierly dismissed by citing an antenna factor.

[PSES] ELF

2012-07-07 Thread Macy
[Fourth attempt to get MY mail server to post to the group, so a lot of information has been removed.] Need table that shows recommended limits up to 1MHz. No interest in electric fields. Anybody have such a table? or URL that shows such a table? Regards, Robert -

Re: [PSES] ELF

2012-07-07 Thread John Woodgate
In message 20120707091554.589bc...@resin04.mta.everyone.net, dated Sat, 7 Jul 2012, Macy m...@basicisp.net writes: Need table that shows recommended limits up to 1MHz. EMC or human exposure limits? In any case, the EMC limits are not the same for all products. -- OOO - Own Opinions Only.

Re: [PSES] ELF

2012-07-07 Thread Doug Powell
Being as he said no interest in E-Fields, I imagine it's about human exposure limits. And as always, it depends on where which jurisdiction is making requirements. Doug Douglas E Powell Compliance Engineering and Consulting http://www.linkedin.com/in/dougp01 -Original Message- From:

Re: [PSES] ELF

2012-07-07 Thread Cortland Richmond
Try FCC OET 65: http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet65/oet65.pdf However, (excerpted) Radio frequency (RF) spectrum Although the RF spectrum is formally defined in terms of frequency as extending from 0 to 3000 GHz, for purposes of the FCC's exposure

Re: [PSES] ELF

2012-07-07 Thread Macy
Cortland, Thank you for the URL AND the excerpt. Not good news, wanted to have 100uT, not 2uT I sure remember years ago seeing something like 2mT, especially at AC mains frequency was allowed. Utilities companies pushed for that because the parks and playgrounds under the power lines were a

Re: [PSES] ELF

2012-07-07 Thread dBaron
Macy: IEEE C95.6 Covers ELF electric and magnetic field exposure guidelines related to human exposure. C95.1 covers radio frequencies. Attached is a summary of the C95.6 and C95.1 (RF) MPE values. Both standards are available from the IEEE at no charge (the distribution is subsidized by the