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Date: Wed, 01 Jun 2016 11:42:40 +0200
From: DK7FC <selberdenken@posteo.de>
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To: rsgb_lf_group@blacksheep.org
References: <1685128417.20160531153441@chriswilson.tv> <1550afb17cc-67dd-e0ec@webprd-m47.mail.aol.com>
In-Reply-To: <1550afb17cc-67dd-e0ec@webprd-m47.mail.aol.com>
Subject: Re: LF: Earth modes and ebnaut?
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Sounds interesting. I've managed about 50km with 250W and a 700m long 
wire. But that was in 3.8 mHz, which is fast mode for VLF. But it was 
one of the standard modes these days :-)
Before TXing EbNaut i would suggest to experiment just with a stable 
carrier and detect it in some distance. Generating an absolutely stable 
carrier is the first step and essential for all EbNaut experiments 
following.
The G4WGT VLF grabber may be helpful but i don't know the distances 
between you...
Nice to see some starting activity.
I have to repair (and improve) the preamp for my VLF remote grabber, 
thus the limited performance in the moment.

73, Stefan

Am 01.06.2016 10:01, schrieb gw8glo@aol.co.uk:
> Chris should be able to hear any signal from you, already have 
> electrodes in place about 50m apart and over 4m deep into the water 
> table. Lot of noise on them with several volts from a local mw tx! Not 
> tried anything further. NO TX yet at this end.
> 73 Dave
>
>
>
> -----Original Message-----
> From: Chris Wilson <chris@chriswilson.tv>
> To: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
> Sent: Tue, 31 May 2016 15:37
> Subject: LF: Earth modes and ebnaut?
>
> 31 May 2016
>
>
> Assuming it's legal to transmit VLF using earth modes, and this seems
> an grey area, is anyone using Ebnaut for this communication method? if
> I tried to master the complexities of it, not being very
> mathematically astute, would anyone be likely to hear or look for a
> signal? I am in north Shropshire, in open countryside, with plenty of
> space for well separated earth rods, and the means to drive them very
> deep into a soild of loam top, about a meter deep, then into what is
> normally very wet sand as the water table here is high for most of the
> year. Thanks
>
>
>
> -- 
>
>
> Best regards,
> Chris 2E0ILY mailto:chris@chriswilson.tv <mailto:chris@chriswilson.tv?>
>
>
>

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Sounds interesting. I've managed about 50km with 250W and a 700m long
wire. But that was in 3.8 mHz, which is fast mode for VLF. But it was
one of the standard modes these days :-)<br>
Before TXing EbNaut i would suggest to experiment just with a stable
carrier and detect it in some distance. Generating an absolutely stable
carrier is the first step and essential for all EbNaut experiments
following.<br>
The G4WGT VLF grabber may be helpful but i don't know the distances
between you...<br>
Nice to see some starting activity.<br>
I have to repair (and improve) the preamp for my VLF remote grabber,
thus the limited performance in the moment.<br>
<br>
73, Stefan<br>
<br>
Am 01.06.2016 10:01, schrieb <a class="moz-txt-link-abbreviated" href="mailto:gw8glo@aol.co.uk:">gw8glo@aol.co.uk:</a>
<blockquote cite="mid:1550afb17cc-67dd-e0ec@webprd-m47.mail.aol.com"
 type="cite"><font color="black" face="arial" size="2">C<font size="2">hris
should be able to hear any signal from you, already have electrodes in
place about 50m apart and over 4m deep into the water table. Lot of
noise on them with several volts from a local mw tx! Not tried anything
further. NO TX yet at this end.<br>
73 Dave<br>
  </font>
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  <div
 style="font-family: arial,helvetica; font-size: 10pt; color: black;">-----Original
Message-----<br>
From: Chris Wilson <a class="moz-txt-link-rfc2396E" href="mailto:chris@chriswilson.tv">&lt;chris@chriswilson.tv&gt;</a><br>
To: rsgb_lf_group <a class="moz-txt-link-rfc2396E" href="mailto:rsgb_lf_group@blacksheep.org">&lt;rsgb_lf_group@blacksheep.org&gt;</a><br>
Sent: Tue, 31 May 2016 15:37<br>
Subject: LF: Earth modes and ebnaut?<br>
  <br>
31 May 2016<br>
  <br>
  <br>
Assuming it's legal to transmit VLF using earth modes, and this seems<br>
an grey area, is anyone using Ebnaut for this communication method? if<br>
I tried to master the complexities of it, not being very<br>
mathematically astute, would anyone be likely to hear or look for a<br>
signal? I am in north Shropshire, in open countryside, with plenty of<br>
space for well separated earth rods, and the means to drive them very<br>
deep into a soild of loam top, about a meter deep, then into what is<br>
normally very wet sand as the water table here is high for most of the<br>
year. Thanks<br>
  <br>
  <br>
  <br>
-- <br>
  <br>
  <br>
Best regards,<br>
Chris 2E0ILY <a moz-do-not-send="true"
 href="mailto:chris@chriswilson.tv?">mailto:chris@chriswilson.tv</a><br>
  <br>
  <br>
  <br>
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