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Re: VLF: progress at VK1SV

To: [email protected]
Subject: Re: VLF: progress at VK1SV
From: Stefan Schäfer <[email protected]>
Date: Thu, 03 Nov 2011 13:10:24 +0100
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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





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