Re: [PSES] Magnetic H Field Strength Density
Andy There are several frequency bands which have limits for both maximum power and maximum power density, which are given in the Spectrum Access requirements contained in CEPT REC 70-03<http://www.erodocdb.dk/docs/doc98/official/pdf/rec7003e.pdf> and often included in the Harmonised Standard (or normative reference thereof) As you note: this is a maximum power per specified bandwidth - the requirement is typically to ensure that the power of a signal is (reasonably) uniformly spread across the occupied bandwidth or permitted bandwidth for the signal. Regards Charlie From: McCallum, Andy [mailto:andy.mccal...@mottmac.com] Sent: 13 June 2016 11:59 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Magnetic H Field Strength Density Hi All ETSI 300 330 uses the term H Field Strength Density - which I have not come across before. It appears to mean the H field strength measured in a particular resolution bandwidth on the spectrum analyser. Can anyone confirm that please? Any help much appreciated. Regards Andy - 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 mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:sdoug...@ieee.org>> Mike Cantwell mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org>> David Heald mailto:dhe...@gmail.com>> - 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 All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Magnetic H Field Strength Density
The term is always associated with a 10 kHz resolution bandwidth, so your conclusion appears correct. With best wishes DESIGN IT IN! OOO - Own Opinions Only <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England From: McCallum, Andy [mailto:andy.mccal...@mottmac.com] Sent: Monday, June 13, 2016 11:59 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Magnetic H Field Strength Density Hi All ETSI 300 330 uses the term H Field Strength Density - which I have not come across before. It appears to mean the H field strength measured in a particular resolution bandwidth on the spectrum analyser. Can anyone confirm that please? Any help much appreciated. Regards Andy - 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 mailto:emc-p...@ieee.org> > All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:sdoug...@ieee.org> > Mike Cantwell mailto:mcantw...@ieee.org> > For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org> > David Heald mailto:dhe...@gmail.com> > - 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 All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
[PSES] Magnetic H Field Strength Density
Hi All ETSI 300 330 uses the term H Field Strength Density - which I have not come across before. It appears to mean the H field strength measured in a particular resolution bandwidth on the spectrum analyser. Can anyone confirm that please? Any help much appreciated. Regards Andy - 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 All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
