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Date: Thu, 03 Nov 2011 13:10:24 +0100
From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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Subject: Re: VLF: progress at VK1SV
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Hi Dimitris,

Am 03.11.2011 05:16, schrieb Dimitrios Tsifakis:
>
> With the success I am having currently with the earth dipole at 136 
> kHz (250 m earth dipole, 2 W RF, QRSS30, solid copy received by VK2XV 
> at 217 km),
Sounds good!!
What is the other elecrode? Do you have 2 earth rods at each end and 
connect the TX in series? Do you resoante the system? What is the 
antenna current at 2W?
It would be interesting to see what happens on 2x 250m and the TX in the 
center. In one case the ends are grounded and in the other, they are not 
grounded. Then the directional pattern and the signal levels at 
different RX sites would be interesting.
I would like to do a trip to VK but maybe this is a bit expensive ;-)

And what about VLF, i.e. 3...30 kHz?

73, Stefan




> I will focus on the earth dipole first before I start thinking of 
> anything else. I will let the group know if there are any developments 
> in that front.
>
> In the meantime, here is some food for thought:
>
> http://people.physics.anu.edu.au/~dxt103/136/earth/4/ 
> <http://people.physics.anu.edu.au/%7Edxt103/136/earth/4/>
>
> 73, Dimitris VK1SV
>
>
>