Message-ID: <5C84F958.5010502@posteo.de>
Date: Sun, 10 Mar 2019 12:47:36 +0100
From: DK7FC <selberdenken@posteo.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <alpine.DEB.2.11.1903021056370.22616@mailn.lipkowski.org> <435595266.2127766.1552155007472@mail.yahoo.com> <5C8430BD.9030002@posteo.de> <2743859.o4Vf0SrW0I@x220>
In-Reply-To: <2743859.o4Vf0SrW0I@x220>
Subject: Re: LF: Re: Re Loomis at LF?
Content-Type: multipart/alternative;
 boundary="------------060508060606040703050106"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

This is a multi-part message in MIME format.
--------------060508060606040703050106
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit

Hello Claudio,

Well, somehow it is both. An amplitude modulated DC voltage (carrier 
frequency = 0) will radiate the same like an AC voltage of the same 
amplitude :-) And then you can modulate that amplitude modulation again, 
e.g. in BPSK or FM. Actually it is like done in any linear mode PA.
It will be an electromagnetic transmission, but we would then like to 
see a detection in the far field or in 1 wavelength distance or above.

Maybe it could work on LF?
Maybe i will build up such an experiment tomorrow.
The local LF grabber and of course the great SpectrumLab software will 
help to measure and display the signal level! This will give a first 
impression. Even charged raindrops will help to play the game! Something 
like a new mode? Like rain-scatter in the GHz range ;-)
Thought a bit longer about the circuit configuration: The antenna could 
be discharged by an IRF710 which has a low output capacity and holds 400 
V. At 137 kHz the on-time (T/2) is 3.65 us and if one wants to spend a 
discharge resistor (to lower the bandwidth of the radiated spectrum), 
100 Ohm may be a good value for a 470 pF antenna.
A plot showing the signal level over time will show which levels can be 
expected. Then we may try to pass an EbNaut message over to DF6NM and 
his EbNaut autodecoder? The message could be repeated again and again, 
for weeks! And then maybe suddenly will appear on the autodecoder 
website!?????

73, Stefan


Am 10.03.2019 12:00, schrieb Claudio Pozzi:
>
> On Saturday, March 09, 2019 10:31:41 PM you wrote:
>
> HI Stephan,
>
> the proposed experiment with two 10 meters antennas is interesting but...
>
> ...is this an electromagnetic (Maxwell) transmission or an 
> electrostatic (Coulomb) transmission?
>
> 73 de Claudio IK2PII
>
> > Hi Jim,
>
> >
>
> > I hope you don't mind that i'd like to share the email with the
>
> > reflector, because i've a thought that might be interesting.
>
> >
>
> > In my view, the Loomis experiment it is rather the detection of a
>
> > changing current (charge per time) on the RX site. The changing current
>
> > is coming from a change in the static electric field, caused by the
>
> > shortcutted 'TX' antenna. Something like a current divider.
>
> >
>
> > In 2010/2011 i've done VLF transmissions on my own, using a 300m
>
> > vertical kite antenna (having a special licence for that altitude). The
>
> > antenna capacity was about 1.5 nF. During an experiment in the summer
>
> > time there was a short moment when the vertical wire was floating. It
>
> > quickly charged up to some kV, which was quite noticable when i catched
>
> > and touched the wire then!! Since that time i carefully kept the wire
>
> > grounded during such experiments.
>
> > So, it means that the wire charged up, so there must be some continuous
>
> > charge flowing onto the wire and, if the wire would be grounded
>
> > permanently, you could probably measure a more or less stable current, i
>
> > guess it would be some 100 uA.
>
> > Now imagine someone else would rise a grounded kite in a few meters
>
> > distance. This would certainly affect the current flowing in my kite
>
> > wire. The farer both 'antennas', the lower expressed the effect will be
>
> > and the higher the antennas, the stronger it will be expressed.
>
> >
>
> > I think the effect would be much better expressed by measuring the
>
> > voltage across a 1 MOhm resistor instead, which could be done by using a
>
> > scope and some overvoltage protection!
>
> > Actually an interesting question: In the summer time, which DC voltage
>
> > could be measured over a 1 MOhm resistor when connecting to a large E
>
> > field antenna and ground?
>
> > And, a next step: If i let my antenna charge up (floating) and then
>
> > discharge it in exact time intervals, say each second, then i should see
>
> > something at 1 Hz on a suitable receiver. This would already come close
>
> > to the experiment i'v done. I'm just replacing the 'natural charge
>
> > source' by a high voltage power supply and modulate that voltage (with a
>
> > sine wave, not rectangular).
>
> >
>
> > So, to answer your question, i think that Loomis experiment was not
>
> > dedicated ELF, it was rather a broad-band spectrum that was radiated,
>
> > since the charged antenna was discharged immediately. For a real ELF
>
> > transmission i would say that the carrier frequency has to be at ELF,
>
> > not the modulating frequency. OK here you might say the carrier
>
> > frequency is 0 and it is AM modulated...
>
> >
>
> > Try to repeat the experiment! Use smaller antennas and shorter
>
> > distances. Could be interesting :-) Rise two 10m high wires in 10m
>
> > distance in an open field. Connect one of them to a scope (1 MOhm input
>
> > resistance), protect the input with a glow lamp. Keep the other wire
>
> > floating. Select 1 second/div. If there is a thunderstorm coming and you
>
> > can see a rising DC level on the scope, then do a shortcircuit on the
>
> > other wire. I bet you will see the voltage dropping on the scope.
>
> >
>
> > 73, Stefan
>
> >
>
> > Am 09.03.2019 19:10, schrieb James Hollander:
>
> > > Hi Jacek and Stefan, Iâd like to suggest that while I canât say for
>
> > > sure there weren't ELF frequencies received in the Loomis experiment
>
> > > of 1866, Iâm hesitant to reach the conclusion ELF was used by
>
> > > Loomis because of the following questions.
>
> > > 1) If the transient current that flowed when Loomisâ transmitter
>
> > > circuit was closed probably lasted only a few milliseconds, wouldnât
>
> > > the modulation frequency content *exceed at least the upper ELF
>
> > > boundary 30Hz* as impressed on the âcarrierâ?
>
> > > 2) With a 600â long TX antenna and only a galvanometer fed by similar
>
> > > height RX antenna, wouldnât any radio waves that might have been
>
> > > received be shorter than 10x the wavelength for which a 600â TX
>
> > > antenna is a quarter wavelength? 10x(600âx4)=24000â or about 8km. If
>
> > > the wavelength is less than about 8km, wouldnât the âcarrierâ
>
> > > frequency content exceed about *37 KHz*?
>
> > > 3) Nevertheless, one might say, if galvanometer deflected temporarily
>
> > > in Loomisâ system, it must have detected some near-DC content unless
>
> > > some nonlinear element were in the receiving circuit. If I Fourier
>
> > > Transform a damped DC transient, what is the frequency content?
>
> > > 4) If there were DC transfer, wouldn't we say it's in the nature of a
>
> > > current charging an atmosphere-ground capacitance through the ground
>
> > > resistance, not radio in near field ELF? Or should we say the meaning
>
> > > of âfrequencyâ in this case becomes so fuzzy that Loomis both did and
>
> > > didnât use ELF?
>
> > > 5) If indeed Loomis communicated any ELF, canât one still radically
>
> > > distinguish the 12.67 Hz experiment at DK7FC as involving a very
>
> > > narrow band continuous wave with 227 hours integration of this
>
> > > continuous wave to detect it and make it separable from other waves
>
> > > that could be generated in the ELF band?
>
> > > Iâm new to the subject of ELF, and would appreciate any words of
>
> > > wisdom youâd like to give.
>
> > > Vy 73, Jim Hollander W5EST
>
> > > -----Original Message-----
>
> > > From: Jacek Lipkowski <sq5bpf@lipkowski.org>
>
> > > To: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
>
> > > Sent: Sat, Mar 9, 2019 4:28 am
>
> > > Subject: Re: LF: RE: RE: Almost touching the ground... | 12.47 Hz
>
> > >
>
> > > Actually a similar experiment to Stefan's has been done already, 
> and at
>
> > > much lower frequencies (almost 0Hz :):
>
> > >
>
> > > http://aerohistory.org/Wireless/loomis.html
>
> > >
>
> > > In this case the power supply is from the cloud electric field and
>
> > > probably had quite a few more kV than Stefan's.
>
> > >
>
> > > Please note the DX distance.
>
> > >
>
> > > VY 73
>
> > >
>
> > > Jacek / SQ5BPF
>
> > >
>
> > >
>
> > > *From: DK7FC <selberdenken@posteo.de*> To: rsgb_lf_group
>
> > > <rsgb_lf_group@blacksheep.org>
>
> > > Sent: Tue, Mar 5, 2019 12:50 pm Subject: ELF: Almost touching the
>
> > > ground... | 12.47 Hz
>
> > > Hi ELF friends, During the last 2 weeks i've done another experiment
>
> > > on ELF, this time
>
> > > on 12.47 Hz, the 24 Mm band (wavelength 24057 km). Again i've crossed
>
> > > the local distance of 3.5 km. That's the lowest frequency i've ever
>
> > > been and it feels like i can see the ground already :-) The dimensions
>
> > > of everything down there are extreme. I've integrated 227 hours of a
>
> > > carrier transmission into one spectrum peak, it is shown in the
>
> > > attachment in 1.25 uHz. This carrier could have transferred an EbNaut
>
> > > message of nearly 100 characters.
>
> > >
>
> > > The ERP was 50 attowatt or -163 dBW and the antenna current was 170 uA
>
> > > only, despite about 5 kV antenna voltage.
>
> > >
>
> > > I'm now trying to put a step below 10 Hz but the RX antenna becomes
>
> > > less efficient with each Hz. 73, Stefan
>
>
>
>
> ----
>
>
> ZE-Light e ZE-Pro: servizi zimbra per caselle con dominio email.it, 
> per tutti i dettagli clicca qui 
> <http://posta.email.it/caselle-di-posta-z-email-it/?utm_campaign=email_Zimbra_102014=main_footer>
>
>
>
>
>
> Sponsor:
>
>
> Idee regalo classiche o alternative? Trova l'offerta migliore in un click
>
>
> Clicca qui <http://adv.email.it/cgi-bin/foclick.cgi?mid=13327&d=10-3>
>
>
>
>
>

--------------060508060606040703050106
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
  <title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Hello Claudio,<br>
<br>
Well, somehow it is both. An amplitude modulated DC voltage (carrier
frequency = 0) will radiate the same like an AC voltage of the same
amplitude :-) And then you can modulate that amplitude modulation
again, e.g. in BPSK or FM. Actually it is like done in any linear mode
PA.<br>
It will be an electromagnetic transmission, but we would then like to
see a detection in the far field or in 1 wavelength distance or above.<br>
<br>
Maybe it could work on LF?<br>
Maybe i will build up such an experiment tomorrow.<br>
The local LF grabber and of course the great SpectrumLab software will
help to measure and display the signal level! This will give a first
impression. Even charged raindrops will help to play the game!
Something like a new mode? Like rain-scatter in the GHz range ;-)<br>
Thought a bit longer about the circuit configuration: The antenna could
be discharged by an IRF710 which has a low output capacity and holds
400 V. At 137 kHz the on-time (T/2) is 3.65 us and
if one wants to spend a discharge resistor (to lower the bandwidth of
the radiated spectrum), 100 Ohm may be a good value for a 470 pF
antenna.<br>
A plot showing the signal level over time will show which levels can be
expected. Then we may try to pass an EbNaut message over to DF6NM and
his EbNaut autodecoder? The message could be repeated again and again,
for weeks! And then maybe suddenly will appear on the autodecoder
website!?????<br>
<br>
73, Stefan<br>
<br>
<br>
Am 10.03.2019 12:00, schrieb Claudio Pozzi:
<blockquote cite="mid:2743859.o4Vf0SrW0I@x220" type="cite">
  <meta name="qrichtext" content="1">
  <style type="text/css">
p, li { white-space: pre-wrap; }
  </style>
  <p style="margin: 0px; text-indent: 0px;">On Saturday, March 09, 2019
10:31:41 PM you wrote:</p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">HI Stephan,</p>
  <p style="margin: 0px; text-indent: 0px;">the proposed experiment
with two 10 meters antennas is interesting but...</p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">...is this an
electromagnetic (Maxwell) transmission or an electrostatic (Coulomb)
transmission?</p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">73 de Claudio IK2PII</p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; Hi Jim,</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; I hope you don't mind
that i'd like to share the email with the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; reflector, because
i've a thought that might be interesting.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; In my view, the Loomis
experiment it is rather the detection of a</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; changing current
(charge per time) on the RX site. The changing current</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; is coming from a
change in the static electric field, caused by the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; shortcutted 'TX'
antenna. Something like a current divider.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; In 2010/2011 i've done
VLF transmissions on my own, using a 300m</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; vertical kite antenna
(having a special licence for that altitude). The</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; antenna capacity was
about 1.5 nF. During an experiment in the summer</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; time there was a short
moment when the vertical wire was floating. It</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; quickly charged up to
some kV, which was quite noticable when i catched</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; and touched the wire
then!! Since that time i carefully kept the wire</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; grounded during such
experiments.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; So, it means that the
wire charged up, so there must be some continuous</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; charge flowing onto
the wire and, if the wire would be grounded</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; permanently, you could
probably measure a more or less stable current, i</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; guess it would be some
100 uA.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; Now imagine someone
else would rise a grounded kite in a few meters</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; distance. This would
certainly affect the current flowing in my kite</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; wire. The farer both
'antennas', the lower expressed the effect will be</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; and the higher the
antennas, the stronger it will be expressed.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; I think the effect
would be much better expressed by measuring the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; voltage across a 1
MOhm resistor instead, which could be done by using a</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; scope and some
overvoltage protection!</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; Actually an
interesting question: In the summer time, which DC voltage</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; could be measured over
a 1 MOhm resistor when connecting to a large E</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; field antenna and
ground?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; And, a next step: If i
let my antenna charge up (floating) and then</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; discharge it in exact
time intervals, say each second, then i should see</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; something at 1 Hz on a
suitable receiver. This would already come close</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; to the experiment i'v
done. I'm just replacing the 'natural charge</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; source' by a high
voltage power supply and modulate that voltage (with a</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; sine wave, not
rectangular).</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; So, to answer your
question, i think that Loomis experiment was not</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; dedicated ELF, it was
rather a broad-band spectrum that was radiated,</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; since the charged
antenna was discharged immediately. For a real ELF</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; transmission i would
say that the carrier frequency has to be at ELF,</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; not the modulating
frequency. OK here you might say the carrier</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; frequency is 0 and it
is AM modulated...</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; Try to repeat the
experiment! Use smaller antennas and shorter</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; distances. Could be
interesting :-) Rise two 10m high wires in 10m</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; distance in an open
field. Connect one of them to a scope (1 MOhm input</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; resistance), protect
the input with a glow lamp. Keep the other wire</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; floating. Select 1
second/div. If there is a thunderstorm coming and you</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; can see a rising DC
level on the scope, then do a shortcircuit on the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; other wire. I bet you
will see the voltage dropping on the scope.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; 73, Stefan</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; Am 09.03.2019 19:10,
schrieb James Hollander:</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Hi Jacek and
Stefan, Iâd like to suggest that while I canât say for</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; sure there
weren't ELF frequencies received in the Loomis experiment</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; of 1866, Iâm
hesitant to reach the conclusion ELF was used by</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Loomis because of
the following questions.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 1) If the
transient current that flowed when Loomisâ transmitter</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; circuit was
closed probably lasted only a few milliseconds, wouldnât</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; the modulation
frequency content *exceed at least the upper ELF</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; boundary 30Hz* as
impressed on the âcarrierâ?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 2) With a 600â
long TX antenna and only a galvanometer fed by similar</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; height RX
antenna, wouldnât any radio waves that might have been</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; received be
shorter than 10x the wavelength for which a 600â TX</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; antenna is a
quarter wavelength? 10x(600âx4)=24000â or about 8km. If</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; the wavelength is
less than about 8km, wouldnât the âcarrierâ</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; frequency content
exceed about *37 KHz*?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 3) Nevertheless,
one might say, if galvanometer deflected temporarily</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; in Loomisâ
system, it must have detected some near-DC content unless</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; some nonlinear
element were in the receiving circuit. If I Fourier</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Transform a
damped DC transient, what is the frequency content?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 4) If there were
DC transfer, wouldn't we say it's in the nature of a</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; current charging
an atmosphere-ground capacitance through the ground</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; resistance, not
radio in near field ELF? Or should we say the meaning</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; of âfrequencyâ in
this case becomes so fuzzy that Loomis both did and</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; didnât use ELF?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 5) If indeed
Loomis communicated any ELF, canât one still radically</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; distinguish the
12.67 Hz experiment at DK7FC as involving a very</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; narrow band
continuous wave with 227 hours integration of this</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; continuous wave
to detect it and make it separable from other waves</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; that could be
generated in the ELF band?</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Iâm new to the
subject of ELF, and would appreciate any words of</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; wisdom youâd like
to give.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Vy 73, Jim
Hollander W5EST</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; -----Original
Message-----</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; From: Jacek
Lipkowski <a class="moz-txt-link-rfc2396E" href="mailto:sq5bpf@lipkowski.org">&lt;sq5bpf@lipkowski.org&gt;</a></p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; 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></p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Sent: Sat, Mar 9,
2019 4:28 am</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Subject: Re: LF:
RE: RE: Almost touching the ground... | 12.47 Hz</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Actually a
similar experiment to Stefan's has been done already, and at</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; much lower
frequencies (almost 0Hz :):</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt;
<a class="moz-txt-link-freetext" href="http://aerohistory.org/Wireless/loomis.html">http://aerohistory.org/Wireless/loomis.html</a></p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; In this case the
power supply is from the cloud electric field and</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; probably had
quite a few more kV than Stefan's.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Please note the
DX distance.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; VY 73</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Jacek / SQ5BPF</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; *From: DK7FC
<a class="moz-txt-link-rfc2396E" href="mailto:selberdenken@posteo.de*">&lt;selberdenken@posteo.de*&gt;</a> To: rsgb_lf_group</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt;
<a class="moz-txt-link-rfc2396E" href="mailto:rsgb_lf_group@blacksheep.org">&lt;rsgb_lf_group@blacksheep.org&gt;</a></p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Sent: Tue, Mar 5,
2019 12:50 pm Subject: ELF: Almost touching the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; ground... | 12.47
Hz</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; Hi ELF friends,
During the last 2 weeks i've done another experiment</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; on ELF, this time</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; on 12.47 Hz, the
24 Mm band (wavelength 24057 km). Again i've crossed</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; the local
distance of 3.5 km. That's the lowest frequency i've ever</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; been and it feels
like i can see the ground already :-) The dimensions</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; of everything
down there are extreme. I've integrated 227 hours of a</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; carrier
transmission into one spectrum peak, it is shown in the</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; attachment in
1.25 uHz. This carrier could have transferred an EbNaut</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; message of nearly
100 characters.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; The ERP was 50
attowatt or -163 dBW and the antenna current was 170 uA</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; only, despite
about 5 kV antenna voltage.</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; </p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; I'm now trying to
put a step below 10 Hz but the RX antenna becomes</p>
  <p style="margin: 0px; text-indent: 0px;">&gt; &gt; less efficient
with each Hz. 73, Stefan</p>
  <p style="margin: 0px; text-indent: 0px;">Â </p>
  <br>
  <br>
  <br>
  <p><font face="Verdana,Arial" size="2">----<br>
  <br>
  <br>
ZE-Light e ZE-Pro: servizi zimbra per caselle con dominio email.it, per
tutti i dettagli <a moz-do-not-send="true"
 href="http://posta.email.it/caselle-di-posta-z-email-it/?utm_campaign=email_Zimbra_102014=main_footer"
 target="_blank">clicca qui</a><br>
  <br>
  <br>
  <br>
  <br>
  <br>
Sponsor:<br>
  <br>
  <br>
Idee regalo classiche o alternative? Trova l'offerta migliore in un
click<br>
  <br>
  <br>
  <a moz-do-not-send="true"
 href="http://adv.email.it/cgi-bin/foclick.cgi?mid=13327&amp;d=10-3"
 target="_blank">Clicca qui</a></font><br>
  <br>
  <br>
  <br>
  <br>
  <br>
  </p>
</blockquote>
</body>
</html>

--------------060508060606040703050106--