From: <hvanesce@comcast.net>
To: <rsgb_lf_group@blacksheep.org>
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Date: Tue, 21 Mar 2017 13:58:52 -0400
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Subject: RE: ULF: New carrier near 2970 Hz...
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Stefan and Paul,

=20

Each new 2970 Hz  experiment your series is exciting; the results today =
with stacked 10:00 UT - 18:00 UT are more so. Compliments on the =
experimental methods and good results, and exploration of narrowband =
skywave propagation through what is apparently uncharted =
frequency/distance territory. Quite exciting.

=20

73,

=20

Jim AA5BW=20

=20

From: owner-rsgb_lf_group@blacksheep.org =
[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of DK7FC
Sent: Tuesday, March 21, 2017 12:47 PM
To: rsgb_lf_group@blacksheep.org
Cc: Renato Romero
Subject: Re: ULF: New carrier near 2970 Hz...

=20

Hi Paul, ULF,

Sorry for my late reply.=20
The transmission takes quite long, so there is no need to stress with my =
answer :-)
Thanks for the overview of the signal received in Bielefeld. Quite =
strong and stable! There have been attempts by DK1IS to see a trace of =
my signal. He is planning to build up a VLF/ULF grabber in JN59VK53 =
<http://no.nonsense.ee/qth/map.html?qth=3DJN59VK53> , quite a quiet =
location :-) The distance is less than Bielefeld from here, so the =
signal should be well detectable...

I'm excited! 3 sigma. I am curious how this looks in one of your =
spectra!? Could you generate one, for the history :-)
How much sigma do you need to make a secure claim that this is my =
signal?
Day by day the SNR should become higher now, so your phase measurements =
and blanker adjustments can become more optimised. After some time the =
night time signal may come through as well.
Yesterday increased from 180 mA to 190 mA, another QRO of 0.5 dB.

And now since sunday there is a 'strong' and clear peak at IK1QFK in 5 =
wavelengths distance: =
http://www.webalice.it/rromero/live_cumiana/last-LFtest_2970.jpg  =
!!!!!!!!!!!!!!!
Currently this peak is the strongest in the spectrum and in all spectra =
covered by the peak hold graph! Also it is spot on the frequency and it =
is already the 4th pixel in one line of the spectrogram.=20
I have saved each capture, i.e. each spectrum so one can scroll through =
the pixels later.
Unfortunately there was some confusion, the spectrogram had to be reset =
2 times. A whole week was lost that way! But never mind. The =
transmission will run for a few days longer until there is a longer dash =
visible.=20
Renato said there will be QRN in the coming days. Hopefully this is not =
so expressed in that range of the spectrum. Local thunderstorms may cost =
a few dB.

Assuming an average SNR of 8 dB in 5 uHz, i could try a 2 character =
EbNaut message over that 5 wavelength distance. For example =
http://abelian.org/ebnaut/calc.php?sndb=3D8 =
<http://abelian.org/ebnaut/calc.php?sndb=3D8&snbws=3D0.000005&snmps=3D&co=
de=3D16K21&sp=3D600&crc=3D22&nc=3D2&submit=3DCalculate> =
&snbws=3D0.000005&snmps=3D&code=3D16K21&sp=3D600&crc=3D22&nc=3D2&submit=3D=
Calculate
A two character message in 6 days! That would be one of the slowest ever =
i guess.
But can this work? The day-night phase difference may mess things up. =
Probably stacked day-time messages could be even faster. At least it =
will be interesting...

73, Stefan





Am 21.03.2017 15:02, schrieb Paul Nicholson:=20


I wrote:=20

> So far, still not a trace here.=20

Well, now perhaps a hint of a signal. Only 3 sigma=20
so not much but is interesting because it's on the=20
right frequency and only present in E/W loop and=20
E-field.=20

I gave up doing long narrow integrations and tried=20
stacking various parts of the day.=20

The 'hint' appears when I stack 10:00 to 18:00 UT=20
each day.=20

Also the phase angle between E-field and E/W loop is=20
unusual but it is so weak it is hard to be sure.=20

I'll work on trying to resolve this better.  It will=20
either improve if real, or vanish if not.=20

Quite a steady signal at Bielefeld, day and night:=20

In 23.15 uHz (12 hour Fourier transform)=20

Days, 06:00 to 18:00 UT=20

 2017-03-11 11.3 dB=20
 2017-03-12 11.2 dB=20
 2017-03-13 11.5 dB=20
 2017-03-14 10.1 dB=20
 2017-03-15 16.3 dB=20
 2017-03-16 12.3 dB=20
 2017-03-17 11.6 dB=20
 2017-03-18 15.2 dB=20
 2017-03-19 15.6 dB=20

Nights, 18:00 to 06:00 UT=20

 2017-03-10/11  11.4 dB=20
 2017-03-11/12  15.8 dB=20
 2017-03-12/13  16.0 dB=20
 2017-03-13/14  13.6 dB=20
 2017-03-14/15  15.8 dB=20
 2017-03-15/16  15.0 dB=20
 2017-03-16/17  12.3 dB=20
 2017-03-17/18  11.6 dB=20
 2017-03-18/19  14.3 dB=20
 2017-03-19/20  10.9 dB=20

--=20
Paul Nicholson=20
--=20


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lang=3DEN-US link=3Dblue vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Stefan and Paul,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Each new 2970 Hz =C2=A0experiment your series is exciting; the =
results today with stacked 10:00 UT - 18:00 UT are more so. Compliments =
on the experimental methods and good results, and exploration of =
narrowband skywave propagation through what is apparently uncharted =
frequency/distance territory. Quite exciting.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>73,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Jim AA5BW <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowt=
ext'>From:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowt=
ext'> owner-rsgb_lf_group@blacksheep.org =
[mailto:owner-rsgb_lf_group@blacksheep.org] <b>On Behalf Of =
</b>DK7FC<br><b>Sent:</b> Tuesday, March 21, 2017 12:47 PM<br><b>To:</b> =
rsgb_lf_group@blacksheep.org<br><b>Cc:</b> Renato =
Romero<br><b>Subject:</b> Re: ULF: New carrier near 2970 =
Hz...<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Hi Paul, =
ULF,<br><br>Sorry for my late reply. <br>The transmission takes quite =
long, so there is no need to stress with my answer :-)<br>Thanks for the =
overview of the signal received in Bielefeld. Quite strong and stable! =
There have been attempts by DK1IS to see a trace of my signal. He is =
planning to build up a VLF/ULF grabber in <a =
href=3D"http://no.nonsense.ee/qth/map.html?qth=3DJN59VK53">JN59VK53</a>, =
quite a quiet location :-) The distance is less than Bielefeld from =
here, so the signal should be well detectable...<br><br>I'm excited! 3 =
sigma. I am curious how this looks in one of your spectra!? Could you =
generate one, for the history :-)<br>How much sigma do you need to make =
a secure claim that this is my signal?<br>Day by day the SNR should =
become higher now, so your phase measurements and blanker adjustments =
can become more optimised. After some time the night time signal may =
come through as well.<br>Yesterday increased from 180 mA to 190 mA, =
another QRO of 0.5 dB.<br><br>And now since sunday there is a 'strong' =
and clear peak at IK1QFK in 5 wavelengths distance: <a =
href=3D"http://www.webalice.it/rromero/live_cumiana/last-LFtest_2970.jpg"=
>http://www.webalice.it/rromero/live_cumiana/last-LFtest_2970.jpg</a>&nbs=
p; !!!!!!!!!!!!!!!<br>Currently this peak is the strongest in the =
spectrum and in all spectra covered by the peak hold graph! Also it is =
spot on the frequency and it is already the 4th pixel in one line of the =
spectrogram. <br>I have saved each capture, i.e. each spectrum so one =
can scroll through the pixels later.<br>Unfortunately there was some =
confusion, the spectrogram had to be reset 2 times. A whole week was =
lost that way! But never mind. The transmission will run for a few days =
longer until there is a longer dash visible. <br>Renato said there will =
be QRN in the coming days. Hopefully this is not so expressed in that =
range of the spectrum. Local thunderstorms may cost a few =
dB.<br><br>Assuming an average SNR of 8 dB in 5 uHz, i could try a 2 =
character EbNaut message over that 5 wavelength distance. For example <a =
href=3D"http://abelian.org/ebnaut/calc.php?sndb=3D8&amp;snbws=3D0.000005&=
amp;snmps=3D&amp;code=3D16K21&amp;sp=3D600&amp;crc=3D22&amp;nc=3D2&amp;su=
bmit=3DCalculate">http://abelian.org/ebnaut/calc.php?sndb=3D8&amp;snbws=3D=
0.000005&amp;snmps=3D&amp;code=3D16K21&amp;sp=3D600&amp;crc=3D22&amp;nc=3D=
2&amp;submit=3DCalculate</a><br>A two character message in 6 days! That =
would be one of the slowest ever i guess.<br>But can this work? The =
day-night phase difference may mess things up. Probably stacked day-time =
messages could be even faster. At least it will be =
interesting...<br><br>73, Stefan<br><br><br><br><br><br>Am 21.03.2017 =
15:02, schrieb Paul Nicholson: <o:p></o:p></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><br>I wrote: <br><br>&gt; So far, still =
not a trace here. <br><br>Well, now perhaps a hint of a signal. Only 3 =
sigma <br>so not much but is interesting because it's on the <br>right =
frequency and only present in E/W loop and <br>E-field. <br><br>I gave =
up doing long narrow integrations and tried <br>stacking various parts =
of the day. <br><br>The 'hint' appears when I stack 10:00 to 18:00 UT =
<br>each day. <br><br>Also the phase angle between E-field and E/W loop =
is <br>unusual but it is so weak it is hard to be sure. <br><br>I'll =
work on trying to resolve this better.&nbsp; It will <br>either improve =
if real, or vanish if not. <br><br>Quite a steady signal at Bielefeld, =
day and night: <br><br>In 23.15 uHz (12 hour Fourier transform) =
<br><br>Days, 06:00 to 18:00 UT <br><br>&nbsp;2017-03-11 11.3 dB =
<br>&nbsp;2017-03-12 11.2 dB <br>&nbsp;2017-03-13 11.5 dB =
<br>&nbsp;2017-03-14 10.1 dB <br>&nbsp;2017-03-15 16.3 dB =
<br>&nbsp;2017-03-16 12.3 dB <br>&nbsp;2017-03-17 11.6 dB =
<br>&nbsp;2017-03-18 15.2 dB <br>&nbsp;2017-03-19 15.6 dB =
<br><br>Nights, 18:00 to 06:00 UT <br><br>&nbsp;2017-03-10/11&nbsp; 11.4 =
dB <br>&nbsp;2017-03-11/12&nbsp; 15.8 dB <br>&nbsp;2017-03-12/13&nbsp; =
16.0 dB <br>&nbsp;2017-03-13/14&nbsp; 13.6 dB =
<br>&nbsp;2017-03-14/15&nbsp; 15.8 dB <br>&nbsp;2017-03-15/16&nbsp; 15.0 =
dB <br>&nbsp;2017-03-16/17&nbsp; 12.3 dB <br>&nbsp;2017-03-17/18&nbsp; =
11.6 dB <br>&nbsp;2017-03-18/19&nbsp; 14.3 dB =
<br>&nbsp;2017-03-19/20&nbsp; 10.9 dB <br><br>-- <br>Paul Nicholson =
<br>-- <o:p></o:p></p></div></body></html>
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