In my experiment of last July i found that 2x 140m worked best. Of
course this depends on the height above ground and the ground
conductivity and further parameters.
https://dl.dropbox.com/u/19882028/MF/A%20full%20size%20dipole%20for%20the%20630%20m%20band.pdf
73, Stefan/DK7FC
Am 23.01.2013 08:48, schrieb Rik Strobbe:
Hello Dimitris,
very interesting, in particular the comparison between the terminated and
unterminated wires.
The fact that an unterminated wire works brings up another experiment: how
would a dipole placed on the ground perform?
On 475kHz a half wave length would be 316m (2x158m), the physical length
probably 300m or less.
73, Rik ON7YD - OR7T
________________________________________
Van: [email protected] [[email protected]]
namens Dimitrios Tsifakis [[email protected]]
Verzonden: woensdag 23 januari 2013 5:42
To: [email protected]
Onderwerp: LF: earth antenna test
Hello group,
here is a quick test I did on 475 kHz, using some wires laying on the
ground. I was really impressed by the signal strength but capturing
the signal from my AA-30 antenna analyser surely takes the cake :-)
http://people.physics.anu.edu.au/~dxt103/136/earth/6/
Happy to hear your comments on this test.
73, Dimitris VK1SV
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