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Re: LF: More EbNaut 137.777

from [Markus Vester] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: More EbNaut 137.777
From: Markus Vester <[email protected]>
Date: Thu, 26 Nov 2015 18:50:05 -0500
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>> How can I estimate Rrad for a 100m wire at 10 m average height on 8.3 kHz? 



1579 ohms * (10 m / 36145 m) = 121 microohms



 



Joe, if you wanted you could almost copy Stefan's VLF coil described on his website, using thin enameled wire on a large water barrel.



Assuming your antenna can withstand 28 kV rms, you could run 0.8 A which would instantly put you into the TA playground with Paul.



 



73, Markus



 



PS. 20 dB more will get you 10 times as far (at least in free space ;-)
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