Re: NEC-LIST: Band designations below LF

if it follows the very, ultra, super, extremely sequence it would be
LF, VLF, ULF, SLF, ELF
in decades

The ITU apparently defines that sequence..
VLF = 3k-30k, etc....
but I can't find a specific recommendation that calls it out.

However, I've only heard VLF and ELF ever used..

Jim Lux
Jet Propulsion Lab

"Harry J Green" <harry_at_spri.levels.unisa.edu.au> writes:
> 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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