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From: Roger Lapthorn <rogerlapthorn@gmail.com>
In-Reply-To: <4D4C8777.4080703@iup.uni-heidelberg.de>
Message-Id: <912F2437-40B9-4273-95C8-5DBFD6E2A01A@gmail.com>
Date: Sat, 5 Feb 2011 08:01:39 +0000
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
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Subject: Re: LF: Earth-mode or not earth-mode
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Gas pipes are non-metallic I think?=20

Not sure I like the idea of connecting many watts of VLF power into high=
 voltage pylons or gas pipes. In the UK we would be locked up as suspected=
 terrorists!

Having a few watts VLF piggyback a water pipe connected to my central heat=
ing radiators sounds as if it should be more legitimate. After all,  we us=
e such connections often as the ground systems for verticals.

This raises the question about the legality of putting VLF signals along=
 utilities - is this actually permitted? After all, there are intercoms an=
d data systems that intentionally use the mains electricity wiring. Anyone=
 know what IS permitted?

73s
Roger

Via my 2.4GHz handheld (iPod Touch 4g)

On 4 Feb 2011, at 23:10, Stefan Sch=C3=A4fer <schaefer@iup.uni-heidelberg.=
de> wrote:

> Jacek,
>=20
> Am 04.02.2011 23:58, schrieb Jacek Lipkowski:
>>=20
>> btw. i have an international gas pipeline nearby: http://en.wikipedia.o=
rg/wiki/Yamal%E2%80%93Europe_pipeline
>> opportunity for dx maybe? :)
>=20
> At least it would be a good radial for a VLF antenna ;-) Dou you think=
 there is a conductive (metallic) contact up to north Russia? Would be int=
eresting to do some tests there and maybe observe the same results as Roge=
r.This would be a nice antenna for ELF but i'm not sure if the gas provide=
r would like that DX was done on his pipeline ;-)
>=20
> 73, Stefan
>=20