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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