Re: NEC-LIST: Band designations below LF

 From Howard Sams' "Reference Data for Engineers," seventh edition, page
1-2 and 1-3 (whoa, practically the first thing covered in the book!),
"Table 1 is adapted from the Radio Regulations of the International
Telecommunication Union, Article 2, 208, Geneva; 1982." The table says
30-300Hz is ELF (Extremely Low Frequency), 300 to 3kHz is VF (Voice
Frequency), 3-30KHz is VLF (Very Low ...), then LF, MF, HF, VHF, UHF,
SHF (Super...), EHF (Extremely...)

I recall a fellow where I used to work presented a seminar on "ELF
Propagation" -- didn't seem to have any sense of humor when I kidded
him about learning how elves propagate...

Cheers,
Tom

Harry J Green wrote:

>Dear reader,
>
>Can anyone point me quickly in the direction of the following
>information: are there "officially" designated bands below LF and, if
>there are, by what authority are they "official"? 3KHz - 30 KHz appears
>to be called VLF and 300Hz - 3 KHz ELF (or maybe ULF, in which case 30
>Hz - 300Hz would be ELF). Who knows the facts?
>
>Many thanks for any responses,
>
>Harry E. Green,
>Institute for Telecommunications Research
>
>
>

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