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Re: LF: Below 9 kHz

To: [email protected]
Subject: Re: LF: Below 9 kHz
From: Väinö Lehtoranta <[email protected]>
Date: Mon, 27 Dec 1999 10:24:24 +0200
In-reply-to: <[email protected]>
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Hello LF folks,

EISCAT, including Sodankyla Observatory people and
Oulu University have been experimenting on frequencies
below 10 kHz since sometime in 1960-1970's but their main interest have been below 5 kHz down to the lowest Schumann etc freqs (also WTF/MTF & KPTF ELF.
I used to cooperate and also made, in the 1970-1980's
spherics recordings of our own on the band 5..15 kHz.
As I have been writing history of radio monitoring
does anyone know - perhaps Magne - about 1280 Hz
tests carried out in Kafjord in 1979-1980 (EMRP 29 W)?

Happy end of 1999, de Vaino, OH2LX








At 14:57 26.12.1999 +0100, you wrote:
Christer Andersson wrote:
Hello all,

I have a small question. What stops us from beginning experimenting on,
say, 8 kHz?
If I have understood things right, frequencies below 8,999 kHz is not
allocated by the ITU, neither regulated by national administrations.
There are no permanent allocations below 9 kHz, but that doesn't
mean the band is open for non-licensed use.

Radio Regulations (ITU) states (at least in my old copy) that
"Administrations authorizing the use of frequencies below 9 kHz
shall ensure that no harmful interference is caused thereby
to the services to which the bands above 9kHz are allocated".

In Norway, the Telecommunication law regulates all the electromagnetic spectrum (actually including signalling
by a flash-light :-) , so at least over here it is
regulated.

--Magne / la1bfa
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V.K.Lehtoranta, OH2LX, POBox 50, FIN-05401 Jokela, Finland
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