[Lf] antennas and top capacitance

[Andre' Kesteloot]

Rik Strobbe wrote:

> Hello Marc,
>
> > For the top capacity ,I'll use 4  X 13 meters wire (25-25-25-25)cm. at
> >10meters hight.
>
> A word of advice : from my experience with multiple topload wires you will
> win relative little capacity with only 25cm spacing. I found a kind of
> 'optimum' at 80cm spacing, most others with paralllel topload wires have
> 0.5 - 1m spacing.
> If possible space the wires at least 50cm. If for some reason you are
> limited to 75cm space, then you will get about the same result with less
> wire (= less weight) when you take 3 wires spaced at +/-40cm.
>
> Good luck in your attempts to make your first QSO on 136kHz, I remember
> getting pretty desperate when I started on this band. I was QRV late March
> (1998) and it took until the end of May before I managed to work G3XDV
> (what was probably the first 2-way QRS QSO ever).
>
> 73, Rik  ON7YD
>
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From: Rik Strobbe <rik.strobbe at fys.kuleuven.ac.be>
Subject: Re: LF: Top load
Date: Fri, 01 Sep 2000 20:05:52
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