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KE4ZNU > VLF 24.01.98 19:46l 38 Lines 911 Bytes #-10394 (0) @ WW
BID : 220574KE4ZNU
Read: GUEST
Subj: Re: Band specifier "VLF"
Path: DB0ZKA<DB0ABH<DB0RGB<DB0WGS<OE3XBS<S50BOX<S50MBL<IV3LAV<IV3AVQ<IV3CJT<
IK4ICZ<IK6RUY<IW0QMN<WB0TAX<WB7AWL<KR4MA<N4WFU<W4RAL<WR4AGC
Sent: 980123/1302Z @:WR4AGC.#DUR.NC.USA.NOAM #:44041 [Durham] FBB5.15c
From: KE4ZNU@WR4AGC.#DUR.NC.USA.NOAM
To : VLF@WW
> Really the frequency band between 30 and 300 kHz should
> be named not VLF, but LF. We have the list:
3 - 30 kHz VLF
30 - 300 kHz LF
300 - 3000 kHz MF
3 - 30 MHz HF
30 - 300 MHz VHF
300 - 3000 MHz UHF
Just to add to the confusion, Carr's "Secrets of RF Circuit
Design" has a chart (page 2 of the 2nd edition) that divides
the bands somewhat differently:
100 Hz - 10 kHz = ELF
10 kHz - 100 kHz = VLF
100 kHz - 1 MHz = LF
1 MHz - 3 MHz = MF
3 MHz - 30 MHz = HF
30 MHz - 300 MHz = VHF
300 MHz - 1 GHz = UHF
1 GHz - 30 GHz = SHF
A frequency chart from the US National Telecommunications &
Information Administration extends VLF from 1 Hz (!) up to
30 kHz, then follows the first chart.
But, yes, it sounds like anything above the tens-of-kHz
range should be LF, not VLF!
Ed
KE4ZNU @ WR4AGC.#DUR.NC.USA.NOAM
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