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Date: Mon, 26 Feb 2018 12:34:07 +0100
From: DK7FC <selberdenken@posteo.de>
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References: <1UQOBAX9Wi.5GpBpi86BpG@optiplex980-pc> <161ce6c803f-1564-19878@webjas-vab234.srv.aolmail.net> <024d01d3aeb2$52a23450$f7e69cf0$@comcast.net>
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Content preview: Thanks Jim, ERP is 400 uW. Often discussed but my statement
here :-) 73, Stefan [...]
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Subject: Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!
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Thanks Jim,
ERP is 400 uW. Often discussed but my statement here :-)
73, Stefan
Am 26.02.2018 04:31, schrieb hvanesce@comcast.net:
>
> Congratulations Jay and Stefan, and thanks Markus for the perspectives
> and reference points. I have a rough recollection of Stefanâs
> estimated ERP, which would seem to slightly more than offset a nominal
> E-W/W-E attenuation ratio, making Markusâ two propagation observations
> particularly interesting, as is the Forest question.
>
> Fine work Stefan and Jay.
>
> 73,
>
> Jim AA5BW
>
> *From:* owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] *On Behalf Of *Markus Vester
> *Sent:* Sunday, February 25, 2018 2:25 PM
> *To:* rsgb_lf_group@blacksheep.org
> *Subject:* Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!
>
> Hi Jay, Stefan,
>
> really good work, truly amazing!
>
> Noticing that Stefan hadn't sent another repeat last
> night 24/25th, I wondered whether the experiment might have already
> been concluded successfully - yes it had ;-)
>
> Considering that Joe has been making the TA W-E path with only 10 uW,
> in retrospective it seems not so surprising that Stefan's much
> stronger signal managed to overcome the E-W nonreciprocity. On the
> other hand, when Uwe had sent a very long carrier in March 2014,
> no conclusive trace was ever detected in Virginia. Now I wonder
> whether Stefan's recent transmission has also been picked up in Forest?
>
> All the best,
> Markus (DF6NM)
>
>
> -----UrsprĂźngliche Mitteilung-----
> Von: jrusgrove <jrusgrove@comcast.net <mailto:jrusgrove@comcast.net>>
> An: (rsgb_lf_group@blacksheep.org
> <mailto:rsgb_lf_group@blacksheep.org>) <rsgb_lf_group@blacksheep.org
> <mailto:rsgb_lf_group@blacksheep.org>>
> Verschickt: So, 25. Feb 2018 19:26
> Betreff: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!
>
> Stefans transmission:
>
> *f = 8270.1000 Hz**
> *Start time: 19.FEB.2018 22:30:00 UTC (daily)*
> *Symbol period: 30 s*
> *Characters: 2*
> *CRC bits: 22*
> *Coding 16K21A*
> *Duration: 07:12 [hh:mm]*
> *Antenna current: 700 mA**
>
> After a successful one character reception earlier in the week, we can
> now report the successful reception of a 2 character message. Stacking
> of 3 transmissions was required (0221, 0222 and 0223). There is also
> a 0224 file but it has timing issues and may or may not be usable.
>
> ebnaut-rx V0.8
> input file C:\EbNaut\DK7FC\sum212223.wav
> sample rate 0.457240 per second
> rx frequency 8270
> file start time 2018-02-22 22:21:17.790
> polynomial 16K21A
> crc size 22
> number of chars 2
> block size 34
> symbol period 30.000
> number of symbols 864
> start offset 537.000
> freq offset 0.100000
> cores 2
> list length 500000
> skipped 538.011261 seconds to start
> initial reference phase 30.6
> ---------------------------------------------
> found DX
> list rank 48426
> reference phase 150,150,150,150
> carrier S/N 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz
> carrier Es/N0 -18.33 dB
> carrier Eb/N0 0.47 dB
> info bit period 2273.68 seconds
> symbol error rate 373/864 = 43.171 %
> Es/N0 from symbol errors -18.2 dB
> Eb/N0 from symbol errors 0.6 dB
> Shannon capacity 2.5 bits/hour
> Shannon efficiency 62.7 %
> symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv
> elapsed 52 seconds
> ---------------------------------------------
> found DX
> list rank 17074
> reference phase 120,150,120,150
> carrier S/N 11.19 dB in 38.6 uHz, -32.94 dB in 1Hz, -66.92 dB in 2.5kHz
> carrier Es/N0 -18.17 dB
> carrier Eb/N0 0.62 dB
> info bit period 2273.68 seconds
> symbol error rate 374/864 = 43.287 %
> Es/N0 from symbol errors -18.4 dB
> Eb/N0 from symbol errors 0.4 dB
> Shannon capacity 2.6 bits/hour
> Shannon efficiency 60.5 %
> symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv
> elapsed 383 seconds
>
> Jay W1VD WD2XNS WE2XGR/2
>
--------------080309020000020404000106
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<body bgcolor="#ffffff" text="#000000">
Thanks Jim,<br>
<br>
ERP is 400 uW. Often discussed but my statement here :-)<br>
<br>
73, Stefan<br>
<br>
Am 26.02.2018 04:31, schrieb <a class="moz-txt-link-abbreviated" href="mailto:hvanesce@comcast.net:">hvanesce@comcast.net:</a>
<blockquote cite="mid:024d01d3aeb2$52a23450$f7e69cf0$@comcast.net"
type="cite">
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Congratulations
Jay and Stefan, and thanks Markus for the perspectives and reference
points. I have a rough recollection of Stefanâs estimated ERP, which
would seem to slightly more than offset a nominal E-W/W-E attenuation
ratio, making Markusâ two propagation observations particularly
interesting, as is the Forest question.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Fine
work Stefan and Jay.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">73,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Jim
AA5BW Â Â <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a class="moz-txt-link-abbreviated" href="mailto:owner-rsgb_lf_group@blacksheep.org">owner-rsgb_lf_group@blacksheep.org</a>
[<a class="moz-txt-link-freetext" href="mailto:owner-rsgb_lf_group@blacksheep.org">mailto:owner-rsgb_lf_group@blacksheep.org</a>] <b>On Behalf Of </b>Markus
Vester<br>
<b>Sent:</b> Sunday, February 25, 2018 2:25 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a><br>
<b>Subject:</b> Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more
success!<o:p></o:p></span></p>
<p class="MsoNormal"><o:p>Â </o:p></p>
<div>
<div id="AOLMsgPart_2_362d4834-db22-41e9-b550-52583b7681cf">
<div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Hi
Jay, Stefan, <br>
<br>
really good work, truly amazing! <br>
<br>
Noticing that Stefan hadn't sent another repeat last
night 24/25th, I wondered whether the experiment might have already
been concluded successfully -Â yes it had ;-)<br>
<br>
Considering that Joe has been making the TA W-E path with only 10 uW,
in retrospective it seems not so surprising that Stefan's much stronger
signal managed to overcome the E-W nonreciprocity. On the other
hand, when Uwe had sent a very long carrier in March 2014,
no conclusive trace was ever detected in Virginia. Now I wonder
whether Stefan's recent transmission has also been picked up in Forest?<br>
<br>
All the best,<br>
Markus (DF6NM)Â Â <br>
<br>
<br>
-----UrsprĂźngliche Mitteilung----- <br>
Von: jrusgrove <<a moz-do-not-send="true"
href="mailto:jrusgrove@comcast.net">jrusgrove@comcast.net</a>><br>
An: (<a moz-do-not-send="true"
href="mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a>)
<<a moz-do-not-send="true" href="mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a>><br>
Verschickt: So, 25. Feb 2018 19:26<br>
Betreff: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!<br>
<br>
<o:p></o:p></span></p>
</div>
<div id="AOLMsgPart_2_7f79aed0-a821-4e60-81a0-ebea2b6c78c0">
<div style="margin: 8.4pt;">
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Stefans
transmission:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><strong><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">f
= 8270.1000 Hz</span></strong><b><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;"><br>
<strong><span style="font-family: "Arial","sans-serif";">Start time:
19.FEB.2018Â 22:30:00 UTC (daily)</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">Symbol
period: 30 s</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">Characters: 2</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">CRC bits: 22</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">Coding 16K21A</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">Duration:
07:12 [hh:mm]</span></strong><br>
<strong><span style="font-family: "Arial","sans-serif";">Antenna
current: 700 mA</span></strong></span></b><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">After
a successful one character reception earlier in the week, we can now
report the successful reception of a 2 character message. Stacking of
3 transmissions was required (0221, 0222 and 0223). There is also
a 0224 file but it has timing issues and may or may not be usable. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">ebnaut-rx
V0.8<br>
input file C:\EbNaut\DK7FC\sum212223.wav<br>
sample rate 0.457240 per second<br>
rx frequency 8270<br>
file start time 2018-02-22 22:21:17.790<br>
polynomial 16K21A<br>
crc size 22<br>
number of chars 2<br>
block size 34<br>
symbol period 30.000<br>
number of symbols 864<br>
start offset 537.000<br>
freq offset 0.100000<br>
cores 2<br>
list length 500000<br>
skipped 538.011261 seconds to start<br>
initial reference phase 30.6<br>
---------------------------------------------<br>
found DX<br>
list rank 48426<br>
reference phase 150,150,150,150<br>
carrier S/N 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz<br>
carrier Es/N0 -18.33 dB<br>
carrier Eb/N0 0.47 dB<br>
info bit period 2273.68 seconds<br>
symbol error rate 373/864 = 43.171 %<br>
Es/N0 from symbol errors -18.2 dB<br>
Eb/N0 from symbol errors 0.6 dB<br>
Shannon capacity 2.5 bits/hour<br>
Shannon efficiency 62.7 %<br>
symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv<br>
elapsed 52 seconds<br>
---------------------------------------------<br>
found DX<br>
list rank 17074<br>
reference phase 120,150,120,150<br>
carrier S/N 11.19 dB in 38.6 uHz, -32.94 dB in 1Hz, -66.92 dB in 2.5kHz<br>
carrier Es/N0 -18.17 dB<br>
carrier Eb/N0 0.62 dB<br>
info bit period 2273.68 seconds<br>
symbol error rate 374/864 = 43.287 %<br>
Es/N0 from symbol errors -18.4 dB<br>
Eb/N0 from symbol errors 0.4 dB<br>
Shannon capacity 2.6 bits/hour<br>
Shannon efficiency 60.5 %<br>
symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv<br>
elapsed 383 seconds<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Jay
W1VDÂ WD2XNSÂ WE2XGR/2<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;">Â <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif"; color: black;"><o:p>Â </o:p></span></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
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--------------080309020000020404000106--