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From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <AANLkTilgENTZiwZLuNfcfEIiATdr-6mR4dOtJi7OV23p@mail.gmail.com><BF4A524700075746A6467658DFC7102C5107CB12AB@ICTS-S-EXC2-CA.luna.kuleuven.be><BF4A524700075746A6467658DFC7102C5107CB12AD@ICTS-S-EXC2-CA.luna.kuleuven.be><AANLkTinAnSB2BcAMGEsdzF3oKRrJIi0UUFXNZtylzdQO@mail.gmail.com><BLU146-W18A88B1CE28254F1F22301CFC50@phx.gbl><4C23FC42.8040204@iup.uni-heidelberg.de><AANLkTikURHV_pW8FesPysRE4uUEODc7sw2SgaSMnjNMG@mail.gmail.com><38A51B74B884D74083D7950AD0DD85E82A1C66@File-Server-HST.hst.e-technik.tu-darmstadt.de><4C25AE1F.7060807@gmx.com> <AANLkTilGCHzFqIHUNkNd_dFGBweTGQ7_q10mT4h_fq-x@mail.gmail.com> <38A51B74B884D74083D7950AD0DD85E82A1C68@File-Server-HST.hst.e-technik.tu-darmstadt.de>
Date: Sun, 27 Jun 2010 01:16:01 +0100
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Subject: LF: Re: VLF earth antenna article in wiki
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Hi Stefan, that is an interesting note. Unfortunately the English vers=
ion
needs a clean up but it is understandable. Unfortunately there is not=
 a lot
of detail about the use and equiment installed.

I think this is not an "earth antenna" but is a mountain supported "T"=
,
though is seems to have quite a slope.  Similar antennas were used at
Criggion GBZ (which was built a a standby for GBR Rugby but now closed=
 and
disassembled) and Jim Creek (NLK, and still transmitting on 24.6 kHz=
 I
think))  for VLF transmissions. Jim Creek was used for Omega transmiss=
ions
up to about 1990 and has been well written up in the "Lowdown"
journal/newsletterl of the Long Wave Club of America. Articles on Crig=
gion
(Practical Wireless) and Jim Creek describe massive concrete anchors=
 points
on the mountain peaks for the support wires.

Alan G3NYK

----- Original Message -----=20
From: "Stefan Sch=E4fer" <schaefer@hst.tu-darmstadt.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Saturday, June 26, 2010 9:50 PM
Subject: LF: VLF earth antenna article in wiki


Hi Roger, VLF,

Today Markus gave me the hint of an (at least for me) most interesting
article in wikipedia. It is about a "earth" antenna like we have it in
principle and it shows that it can indeed compete with a traditional=
 marconi
antenna. Maybe you know that since 10s of years but for me it was new:

http://en.wikipedia.org/wiki/Herzogstand_Radio_Station

or in german

http://de.wikipedia.org/wiki/Funkstation_am_Herzogstand (more detailed=
 and
with a picture of the antenna construction)



73, Stefan/DK7FC