DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=btinternet.com;
  h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding;
  b=dDLJKH9brPLYWcQQTw4xlr3PrR51PM9L2SFE6t60nfWqj8elLcIWeJv1Ov9vnU3T8zHG5rNRifqAQcLNOTRiR5N4JbfS5mvpj73Tyeda/gHA5jZJMSOEUQO0xjcbLC3GiQIHEclvR+9d/rT9ut2wLDvdjWNM+0raDz7ieKOst7c=;
Message-ID: <58773.51665.qm@web86507.mail.ird.yahoo.com>
Date: Sun, 27 Dec 2009 11:51:28 +0000 (GMT)
From: ALAN MELIA <alan.melia@btinternet.com>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <38A51B74B884D74083D7950AD0DD85E828AD05@File-Server-HST.hst.e-technik.tu-darmstadt.de>
MIME-Version: 1.0
DomainKey-Status: good (testing) 
Subject: Re: AW: LF: Influence of a TX antenna to a small rx antenna
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


Hi Stefan I hope it does not give you indigestion :-))

Good luck with it.....all LF sites are different so in general require dif=
ferent detailed solutions. It seemed generally to be sufficient to de-tune=
 the unused antenna to reduce the interaction to low levels.

Best Wishes for Dx in the New Year
Alan G3NYK

--- On Sun, 27/12/09, Stefan Sch=C3=A4fer <schaefer@hst.tu-darmstadt.de>=
 wrote:

> From: Stefan Sch=C3=A4fer <schaefer@hst.tu-darmstadt.de>
> Subject: AW: LF: Influence of a TX antenna to a small rx antenna
> To: rsgb_lf_group@blacksheep.org
> Date: Sunday, 27 December, 2009, 10:55
>=20
>=20
>=20
> =20
>=20
>=20
> =20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
> =20
>=20
>=20
>=20
> Hi
> Alan, tnx, i have
> printed your article and will read it now at breakfast
> ;-)
>=20
> =20
>=20
> Perhaps
> I will come back
> with some questions=E2=80=A6 J
>=20
> =20
>=20
> 73,
> Stefan/DK7FC
>=20
> -----Urspr=C3=BCngliche
> Nachricht-----
>=20
> Von:
> owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von ALAN
> MELIA
>=20
> Gesendet:
> Sonntag, 27. Dezember
> 2009 01:32
>=20
> An:
> rsgb_lf_group@blacksheep.org
>=20
> Betreff: Re:
> LF: Influence of a TX
> antenna to a small rx antenna
>=20
> =20
>=20
>=20
> =20
>  =20
>  =20
>  =20
>   Hi Stephan yes the aerialls will
> be very close
>   compared with the wavelength so they will interact
> particularly is tuned. We
>   did some measurements ar Finbar's location several
> years ago
>=20
>   http://www.alan.melia.btinternet.co.uk/aecouple.htm=20
>=20
>  =20
>=20
>   The interaction was measured on an antenna  RF
> bridge, and demonstrates
>   the coupling between two wires.
>=20
>  =20
>=20
>   Best Wishes
>=20
>   Alan G3NYK
>=20
>  =20
>=20
>  =20
>=20
>  =20
>  =20
>  =20
>  =20
> =20
>=20
>=20
> =20
>=20
>=20
>=20
> =20
>=20
>=20
>=20