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Re: LF: Top loaded vertical spiral antenne

To: [email protected]
Subject: Re: LF: Top loaded vertical spiral antenne
From: DK7FC <[email protected]>
Date: Mon, 01 Jun 2015 14:54:31 +0200
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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





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