There is a standard set of names that cove the following decade frequency bands:
30 300 Hz: extremely low frequency (ELF) 300 Hz 3 kHz: voice frequency (VF) 3 30 kHz: very low frequency (VLF) 30 300 kHz: low frequency (LF) 300 kHz 3 MHz: medium frequency (MF) 3 30 MHz: high frequency (HF) 30 300 MHz: very high frequency (VHF) 300 MHz 3 GHz: ultrahigh frequency (UHF) 3 30 GHz: super-high frequency (SHF) 30 300 GHz: extremely high frequency (EHF) Source: Reference Handbook for Radio Engineers, Fifth Edition Ken Javor Phone: (256) 650-5261 From: "Crane, Lauren" <[email protected]> Date: Wed, 20 Feb 2013 18:45:06 +0000 To: "[email protected]" <[email protected]> Conversation: "ELF" Subject: "ELF" Is ELF¹ (as in ELF EMI testing¹) well established in any region(s) (US, EU, etc) as a particular frequency set, or is it primarily a subjective term for ³low-ish² frequencies? If the former, document citations would be very much appreciated. Regards, Lauren Crane KLA-Tencor P.S. I realize, of course, that Elf¹s are well established in the region of the North Pole with annual frequency and that they are said to be low-ish in stature. ;-) - ---------------------------------------------------------------- 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://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://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://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://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]>
