Re: LF: ELF communications ?

To:	[email protected]
Subject:	Re: LF: ELF communications ?
From:	Dimitrios Tsifakis <[email protected]>
Date:	Tue, 2 Dec 2014 07:19:16 +1100
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Hi Stefan,

> This afternoon i'm attempting to transmit on my INV-L on 136.172 Hz (not
> kHz!). Just preparing my H bridge VLF PA and i intend to use an old 10 kV
> transformer which i got from an old furnance (to inflame the oil stream),
> see https://dl.dropboxusercontent.com/u/19882028/VLF/10kV%20Trafo.jpg

Have you done any more tests with this? I am curious to see the
results. Would this idea work on VLF as well? I have come across some
power toroid transformers that have a reasonablywide useful bandwidth
that extends in the VLF part of the spectrum and perhaps such a
transformer connected to a really nice amateur LF/MF antenna could be
a very quick way of getting a small signal on VLF?

73, DImitris VK1SV

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