Message-ID: <556C5607.60707@posteo.de>
Date: Mon, 01 Jun 2015 14:54:31 +0200
From: DK7FC <selberdenken@posteo.de>
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Subject: Re: LF: Top loaded vertical spiral antenne
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Hi Marcel,

What about the house? Is there a chance to install a vertical antenna on 
it? This is what i would do. As high as possible. And i would just start 
to install something and see how it works, to improve things then. RF 
current measurements are helpful, so you can see where the best 
improvements can be ontained (either using more earth rods or building a 
better coil or removing a tree or adding the house earth or...)

73, Stefan

Am 01.06.2015 11:11, schrieb Marcel Bos:
> Members,
>
> My backyard is in the city 8 x 8 m.  My intention is to do some 
> experiments on 472 khz.
> Ready: RX converter 0-500 khz 10 mhz osc. and K3, RX ant. pa0rdt whip 
> and receiving loop
>
> TX: GW3UEP 100 watt, RF meter, and variometer 30 uh -600 uh
>
> Now i'm looking for a antenne. Found a article from Finnbar EI0CF and 
> Alan G3NYK about the spiral toploaded vertical.
>
> Has any body tryed this antenne, is the original article availble.
> What is the distance between the wire's  of the spiral?
> Also talking about a double spiral?
>
> So who is gone help me out  ore has some better suggetions for a 
> antenne in my backyard
>
> http://www.xeropage.co.uk/g3nyk/spiraltop.htm#aerials
>
> tnx in advanced
>
> Marcel
> PA9M
>