Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w1QBeYK7001533 for ; Mon, 26 Feb 2018 12:40:36 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eqH2v-0001VM-Pg for rs_out_1@blacksheep.org; Mon, 26 Feb 2018 11:34:17 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eqH2u-0001VD-32 for rsgb_lf_group@blacksheep.org; Mon, 26 Feb 2018 11:34:16 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eqH2p-0003Ho-PC for rsgb_lf_group@blacksheep.org; Mon, 26 Feb 2018 11:34:14 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id A8CC320FC5 for ; Mon, 26 Feb 2018 12:34:09 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1519644849; bh=0ezJwMqtsGDwSlPIabnyfQaBzqlS9HUcur5108vqcjo=; h=Date:From:To:Subject:From; b=bhGZtBRbTtnei+iCNL0fB+tfDEbzqLnx7HXVYpA8StuhpBHSHYz6Ju84t7GWwZTG8 +I6YEsaLf3JPQJGtSOZ4eLkISr/VB1HWwgHj3chjSuRc4xKaAHMpHmysbkX0pH8aDN i7wjezzpacfYoieQlyLfp/eXGfFPBVBw59hoNZWhSWg+Mcr0ijSsx3mnFjDm8EF6Hs ISIo0KztsPLwuSJP1JePu8OW0A13Qqkq7/pAqiB1YeRdXUsxY3LR9gtSiVfJExXnuO /LC5rwl0loTLKjDpU0RNGymSAJYb6m5SWXwI+3vdVvcZdnhoEkF4U35y14cQF4P6C1 itSlqbaMwndkw== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3zqfqN2BV4z9rxN for ; Mon, 26 Feb 2018 12:34:08 +0100 (CET) Message-ID: <5A93F0AF.7040503@posteo.de> Date: Mon, 26 Feb 2018 12:34:07 +0100 From: DK7FC 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: <1UQOBAX9Wi.5GpBpi86BpG@optiplex980-pc> <161ce6c803f-1564-19878@webjas-vab234.srv.aolmail.net> <024d01d3aeb2$52a23450$f7e69cf0$@comcast.net> In-Reply-To: <024d01d3aeb2$52a23450$f7e69cf0$@comcast.net> X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Thanks Jim, ERP is 400 uW. Often discussed but my statement here :-) 73, Stefan [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 0bac830672365eda92e91f63ed58b412 Subject: Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success! Content-Type: multipart/alternative; boundary="------------080309020000020404000106" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false This is a multi-part message in MIME format. --------------080309020000020404000106 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 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 Stefan’s > estimated ERP, which would seem to slightly more than offset a nominal > E-W/W-E attenuation ratio, making Markus’ 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) > > > -----Ursprüngliche Mitteilung----- > Von: jrusgrove > > An: (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 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Stefan’s estimated ERP, which would seem to slightly more than offset a nominal E-W/W-E attenuation ratio, making Markus’ 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)  


-----Ursprüngliche Mitteilung-----
Von: jrusgrove <jrusgrove@comcast.net>
An: (rsgb_lf_group@blacksheep.org) <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

 

 

 

 

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