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Re: LF: Advice on Antenna.

To: [email protected]
Subject: Re: LF: Advice on Antenna.
From: "Rik Strobbe" <[email protected]>
Date: Tue, 14 Sep 1999 09:56:18
In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Hi Des,

In his mail Geri, DK8KW, has given a very good description of what to do.
I would like just to add 2 options :

1. If it is mechanically possible you might gain some dB's by placing the
loading coil (or at least a part of it) at the top of the vertical section.
Especially with a rather small top-hat as you described this will increase
the effeciency of the antenna. I believe that G3XDV has some experience
with it.

2. Having several parallel wires in the top-hat will increase the antenna
capacitance and is in some cases mechanicaly simple to implement. I use an
inverted-L antenna with a 13m high vertical section and a 26m long
horizontal section that consists of 4 parallel wires each 0.8m separated.

73, Rik  ON7YD

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