Message-ID: <56C75E51.8080002@posteo.de>
Date: Fri, 19 Feb 2016 19:26:25 +0100
From: DK7FC <selberdenken@posteo.de>
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To: rsgb_lf_group@blacksheep.org
References: <28ca526fc94a471fa3faa7b591da5188@kabelmail.de>
In-Reply-To: <28ca526fc94a471fa3faa7b591da5188@kabelmail.de>
Subject: Re: VLF: 8270.000 Hz and forest VLF grabber preparations...DONE..
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Hello Uwe,

I tried to decode each of your transmissions of the last days, without 
success. Sorry.
A carrier in front and after the transmission could help to see if there 
is a chance at all to decode something. I know you're sometimes TXing a 
carrier before the message but often it was to weak to be visible in the 
424uHz window. Maybe it will work much better from the forest. I'm still 
not collection FFT data from there but i carrier would help to see if 
and how much better the situation is from there.
Soon more, when i go to use a different (better) soundcard to add a 
filter to the current one...

73, Stefan

Am 19.02.2016 15:15, schrieb uwe-jannsen@kabelmail.de:
> OK, Paul. probably no transmission today. it is taining.
>
> Stefan, how are you?
>
> Uwe/dj8wx
>
> *Von:* Paul Nicholson <vlf0403@abelian.org>
> *Gesendet:* 19.02.2016 10:41
> *An:* <rsgb_lf_group@blacksheep.org>
> *Betreff:* Re: AW: Re: AW: Re: VLF: 8270.000 Hz and forest VLF grabber 
> preparations...DONE..
>
> Uwe wrote:
>
> > start 2016-02-18 16:00:00
> > period 30
> > chars 2 (368bits)
> > duration 03:04:00.00
> > repeat on 30min
>
> All decoded with no problem. So far we have
>
> 16:00 Eb/N0 = +10.4 dB -24.2 deg abs phase
> 19:30 Eb/N0 = +8.8 dB -7.2 deg abs phase
> 23:00 Eb/N0 = +11.0 dB -1.8 deg abs phase
> 02:30 Eb/N0 = +10.8 dB -10.2 deg abs phase
> 06:00 Eb/N0 = +4.0 dB +7.2 deg abs phase, ref 0 0 -30 -30
>
> All decoded with constant phase reference except for 06:00 and the
> absolute phase doesn't change much for the whole transmission.
>
> The 06:00 shows the disruptive effect of the terminator passage.
>
> --
> Paul Nicholson
> --

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Hello Uwe,<br>
<br>
I tried to decode each of your transmissions of the last days, without
success. Sorry.<br>
A carrier in front and after the transmission could help to see if
there is a chance at all to decode something. I know you're sometimes
TXing a carrier before the message but often it was to weak to be
visible in the 424uHz window. Maybe it will work much better from the
forest. I'm still not collection FFT data from there but i carrier
would help to see if and how much better the situation is from there.<br>
Soon more, when i go to use a different (better) soundcard to add a
filter to the current one...<br>
<br>
73, Stefan<br>
<br>
Am 19.02.2016 15:15, schrieb <a class="moz-txt-link-abbreviated" href="mailto:uwe-jannsen@kabelmail.de:">uwe-jannsen@kabelmail.de:</a>
<blockquote cite="mid:28ca526fc94a471fa3faa7b591da5188@kabelmail.de"
 type="cite">
  <div style="font-family: arial,helvetica,sans-serif; font-size: 12px;">OK,
Paul. probably no transmission today. it is taining.<br>
  <br>
Stefan, how are you?<br>
  <br>
Uwe/dj8wx<br>
  <br>
 
  <div class="replyHeader"
 style="border-top: 1px solid rgb(223, 223, 223); padding: 5px; background-color: rgb(249, 249, 249); line-height: 20px;"><b
 style="width: 80px; display: inline-block; font-size: 95%;">Von:</b>
Paul Nicholson <a class="moz-txt-link-rfc2396E" href="mailto:vlf0403@abelian.org">&lt;vlf0403@abelian.org&gt;</a><br>
  <b style="width: 80px; display: inline-block; font-size: 95%;">Gesendet:</b>
19.02.2016 10:41<br>
  <b style="width: 80px; display: inline-block; font-size: 95%;">An:</b>
<a class="moz-txt-link-rfc2396E" href="mailto:rsgb_lf_group@blacksheep.org">&lt;rsgb_lf_group@blacksheep.org&gt;</a><br>
  <b style="width: 80px; display: inline-block; font-size: 95%;">Betreff:</b>
Re: AW: Re: AW: Re: VLF: 8270.000 Hz and forest VLF grabber
preparations...DONE..</div>
 
  <div><br>
Uwe wrote:<br>
  <br>
&gt; start 2016-02-18 16:00:00<br>
&gt; period 30<br>
&gt; chars 2 (368bits)<br>
&gt; duration 03:04:00.00<br>
&gt; repeat on 30min<br>
  <br>
All decoded with no problem. So far we have<br>
  <br>
16:00 Eb/N0 = +10.4 dB -24.2 deg abs phase<br>
19:30 Eb/N0 = +8.8 dB -7.2 deg abs phase<br>
23:00 Eb/N0 = +11.0 dB -1.8 deg abs phase<br>
02:30 Eb/N0 = +10.8 dB -10.2 deg abs phase<br>
06:00 Eb/N0 = +4.0 dB +7.2 deg abs phase, ref 0 0 -30 -30<br>
  <br>
All decoded with constant phase reference except for 06:00 and the<br>
absolute phase doesn't change much for the whole transmission.<br>
  <br>
The 06:00 shows the disruptive effect of the terminator passage.<br>
  <br>
--<br>
Paul Nicholson<br>
--<br>
 </div>
  </div>
</blockquote>
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