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 w1JHKZdh005805 for ; Mon, 19 Feb 2018 18:20:36 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1enp2t-0001iq-IJ for rs_out_1@blacksheep.org; Mon, 19 Feb 2018 17:16:07 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1enp2s-0001ih-P2 for rsgb_lf_group@blacksheep.org; Mon, 19 Feb 2018 17:16:06 +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 1enp2o-0000TK-To for rsgb_lf_group@blacksheep.org; Mon, 19 Feb 2018 17:16:05 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id AAD7420FA3 for ; Mon, 19 Feb 2018 18:15:59 +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=1519060561; bh=Xq9bCn3x+YsiUNVmSIQMtfuCLHiLhBHwd3V93IAw65k=; h=Date:From:To:Subject:From; b=hjpmSPetzQB75bMLSRF450FIy2uav4aRapJbdND1NvPEiGOj6ifM9mKGYUX4ot7Bu QQ5FvpZ6XhLm1elVdZpkRNqdxHbjvZ0fV93Pd5+UmOLJcY2GMabFz2Cm9ra1F9Q6/P P67l2Ac5DHAWZGLuEx6ELRO3o+x9Uq9eR/uVbdXlQmy+z1VgK0EqeBtx4zSwa6h6iR d7IPbeT8Lc6Wp9YQfOfY2rrzzJePp4mG96r90rT6Tbb/ZrRbO/rygmBYezQ+cIwdX4 nEoUPARw/BksJZJ4nDMbB0+5JA2KXG74b1o/Uv7SLv/XfnaT880lNcphrOKCmd6zgf H8oT7U3XxZByw== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3zlVl23r0Mz9rxR for ; Mon, 19 Feb 2018 18:15:57 +0100 (CET) Message-ID: <5A8B064D.9020003@posteo.de> Date: Mon, 19 Feb 2018 18:15:57 +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: <161af073fa5-c86-13005@webjas-vac009.srv.aolmail.net> In-Reply-To: <161af073fa5-c86-13005@webjas-vac009.srv.aolmail.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: Hi Markus, Thanks. Yes you are right, almost to good to be real. But there was no fine tuning necessary, no frequency offset, no unexpected timing offset, no additional false messages. It seems to be true :-) The best SNR was 10.5 dB in 39.1 uHz. Unbelivable! Based on that, the 2 char message should be there after 2 nights, easily: http://abelian.org/ebnaut/calc.php?sndb=10.5&snbws=0.000039&snmps=&code=16K21&sp=30&crc=22&nc=2&submit=Calculate Maybe even after one night? [...] 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: ecf102e6d15c1e466f357d5e6d956ac3 Subject: Re: VLF: DK7FC > W1VD 8.27 kHz EbN0 success! Content-Type: multipart/alternative; boundary="------------000402020706020509070909" 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_20_30,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. --------------000402020706020509070909 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi Markus, Thanks. Yes you are right, almost to good to be real. But there was no fine tuning necessary, no frequency offset, no unexpected timing offset, no additional false messages. It seems to be true :-) The best SNR was 10.5 dB in 39.1 uHz. Unbelivable! Based on that, the 2 char message should be there after 2 nights, easily: http://abelian.org/ebnaut/calc.php?sndb=10.5&snbws=0.000039&snmps=&code=16K21&sp=30&crc=22&nc=2&submit=Calculate Maybe even after one night? Tomorrow will be interesting... 73, Stefan Am 19.02.2018 18:05, schrieb Markus Vester: > Wow that's almost too good to be true! The "holy grail" of E-W > transatlantic, achieved in a single good night. Congratulations to Jay > and Stefan, for boldly daring this experiment and bringing it to this > surprising success! > > Best 73, > Markus (DF6NM) > > -----Ursprüngliche Mitteilung----- > Von: DK7FC > An: rsgb_lf_group > Verschickt: Mo, 19. Feb 2018 16:00 > Betreff: Re: VLF: DK7FC > W1VD 8.27 kHz EbN0 success! > > Hi Jay, VLF, > > An excellent achievement below 9 kHz! And even from a single night, > without stacking!!! I expected we will need about a week, or even more. > > To leave a carrier trace or even a message decode over that path, from > east to west, was one of the goals during the kite experiments in > 2010/2011, where my ERP was 20 dB higher. We mever managed that. Until > now! > > So maybe the E>W path is less than 20 dB harder. That opens the door > for more imaginations about VLF DX, not only for me. > > We need to proove that this is reproducable :-) So let me try a 2 > character message starting this night: > > *f = 8270.1000 Hz > Start time: 19.FEB.2018 22:3:00 UTC (daily) > Symbol period: 30 s > Characters: 2 > CRC bits: 22 > Coding 16K21A > Duration: 07:12 [hh:mm] > Antenna current: 700 mA* > > In the attachment one can see the results put out by the Linux decoder > running on the file you sent me this morning. Only right decodes and > improving rank. > > Can we really expect 2 characters in 2 days? We will see! Let's go! > > 73, Stefan > > > > > Am 19.02.2018 15:41, schrieb jrusgrove@comcast.net: > > > Stefan's transmission: > *f = 8270.1000 Hz > Start time: 12.FEB.2018 22:32:00 UTC (daily) > Symbol period: 32 s > Characters: 1 > CRC bits: 24 > Coding 16K21A > Duration: 07:06:40 [hh:mm:ss] > Antenna current: 700 mA* > After a week of trying ... including two nights with TX problems, > one night with RX problems and one night with high noise > levels ... a successful decode of Stefan's message was made on > last night's transmission. s/n in 39 uHz 10.5 dB and Eb/N0 2.54 > dB. It was pretty convincing as the decode popped up in the > 0,0,0,0 phase trial and only improved thereafter. > Congrats Stefan on what appears to be the first E>W T/A on > Dreamers Band! > Jay W1VD > > --------------000402020706020509070909 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Markus,

Thanks. Yes you are right, almost to good to be real. But there was no fine tuning necessary, no frequency offset, no unexpected timing offset, no additional false messages. It seems to be true :-)
The best SNR was 10.5 dB in 39.1 uHz. Unbelivable!
Based on that, the 2 char message should be there after 2 nights, easily: http://abelian.org/ebnaut/calc.php?sndb=10.5&snbws=0.000039&snmps=&code=16K21&sp=30&crc=22&nc=2&submit=Calculate
Maybe even after one night?

Tomorrow will be interesting...

73, Stefan

Am 19.02.2018 18:05, schrieb Markus Vester:
Wow that's almost too good to be true! The "holy grail" of E-W transatlantic, achieved in a single good night. Congratulations to Jay and Stefan, for boldly daring this experiment and bringing it to this surprising success! 

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mo, 19. Feb 2018 16:00
Betreff: Re: VLF: DK7FC > W1VD 8.27 kHz EbN0 success!

Hi Jay, VLF,

An excellent achievement below 9 kHz! And even from a single night, without stacking!!! I expected we will need about a week, or even more.

To leave a carrier trace or even a message decode over that path, from east to west, was one of the goals during the kite experiments in 2010/2011, where my ERP was 20 dB higher. We mever managed that. Until now!

So maybe the E>W path is less than 20 dB harder. That opens the door for more imaginations about VLF DX, not only for me.

We need to proove that this is reproducable :-) So let me try a 2 character message starting this night:

f = 8270.1000 Hz
Start time: 19.FEB.2018  22:3:00 UTC (daily)
Symbol period: 30 s
Characters: 2
CRC bits: 22
Coding 16K21A
Duration: 07:12 [hh:mm]
Antenna current: 700 mA

In the attachment one can see the results put out by the Linux decoder running on the file you sent me this morning. Only right decodes and improving rank.

Can we really expect 2 characters in 2 days? We will see! Let's go!

73, Stefan




Am 19.02.2018 15:41, schrieb jrusgrove@comcast.net:
Stefan's transmission:
 
f = 8270.1000 Hz
Start time: 12.FEB.2018  22:32:00 UTC (daily)
Symbol period: 32 s
Characters: 1
CRC bits: 24
Coding 16K21A
Duration: 07:06:40 [hh:mm:ss]
Antenna current: 700 mA
After a week of trying ... including two nights with TX problems, one night with RX problems and one night with high noise levels ... a successful decode of Stefan's message was made on last night's transmission. s/n in 39 uHz 10.5 dB and Eb/N0 2.54 dB. It was pretty convincing as the decode popped up in the 0,0,0,0 phase trial and only improved thereafter.
 
Congrats Stefan on what appears to be the first E>W T/A on Dreamers Band!
 
Jay W1VD 
 
 
    

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