Message-ID: <477F40FD.10301@online.fr>
Date: Sat, 05 Jan 2008 09:34:05 +0100
From: =?ISO-8859-1?Q?Jean-Pierre_M=E9r=E9?= <jpm.f1afj@online.fr>
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Subject: Re: LF: Interesting reading
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Hello J B and all ,
look at : =20
http://patft1.uspto.gov/netacgi/nph-Parser?Sect1=3DPTO1&Sect2=3DHITOFF&d=3DP=
ALL&p=3D1&u=3D/netahtml/PTO/srchnum.htm&r=3D1&f=3DG&l=3D50&s1=3D3984839.PN.&=
OS=3DPN/3984839&RS=3DPN/3984839
73 qro J-P f1afj


J. B. Weazle McCreath a =E9crit :
> Hello Lowfers & LFers,
>
> My good wife gave me Volume 7 of the ARRL Antenna Compendium
> as one of my Christmas gifts.  On page 3 is an article which describes a
> very clever way of placing inductive loading at the top of a tower which
> is part of a top loaded monopole. The author is John Belrose, VE2CV.
>
> It's done by placing an insulated conductor inside the upper portion of
> the tower.  The top of the conductor extends above the tower slightly
> and has the top loading attached to it.  The lower end of the conductor
> is connected to the tower to form an air-insulated coaxial line.  Moving
> the position of this lower connection varies the length of the coaxial lin=
e
> which in turn varies the inductance.
>
> Has anyone here heard of this previously and/or tried it?
>
> 73, J.B., VE3EAR - VE3WZL
> Solar and wind powered
> Lowfer " EAR"  188.830
> EN93dr
>
> http://www.hurontel.on.ca/~weazle
>
>
>
>
>
>
>  =20

--=20
Website : http://jpmere.online.fr/