Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u31MH9uZ013429 for ; Sat, 2 Apr 2016 00:17:09 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1am7FW-0000Iv-Gb for rs_out_1@blacksheep.org; Fri, 01 Apr 2016 23:09:02 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1am7FV-0000Im-PE for rsgb_lf_group@blacksheep.org; Fri, 01 Apr 2016 23:09:01 +0100 Received: from omr-m003e.mx.aol.com ([204.29.186.3]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.86) (envelope-from ) id 1am7FT-0003hh-AQ for rsgb_lf_group@blacksheep.org; Fri, 01 Apr 2016 23:09:00 +0100 Received: from mtaout-mcb02.mx.aol.com (mtaout-mcb02.mx.aol.com [172.26.50.174]) by omr-m003e.mx.aol.com (Outbound Mail Relay) with ESMTP id 6E75A3800086 for ; Fri, 1 Apr 2016 18:08:57 -0400 (EDT) Received: from White (ipbcc05f3c.dynamic.kabel-deutschland.de [188.192.95.60]) by mtaout-mcb02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id E5B0938000093 for ; Fri, 1 Apr 2016 18:08:56 -0400 (EDT) Message-ID: From: "Markus Vester" To: References: <56FE7A61.5060307@posteo.de> <8D35A393A973C3F-1838-746092@webmail-vm119.sysops.aol.com> Date: Sat, 2 Apr 2016 00:08:55 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1459548537; bh=dsszLeoPjYV+Qu+0LkemLXA2AYzRzAIpNsT5SIGmZHU=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=e0GxTaOubSq5UJqtI7aK87vuXdLNyAf1KaquCINl366KFCjOBgqvHErYvpxS/Bv9J TNjPsatX+p4BpaIVHe8IspT7NovytTqA/zeQMPAGazk636xbWvsuP7E/CV37xwB71v GwOchnq27JzJrxATgDqx3pQVHwuLsRlvWQovNyMU= x-aol-sid: 3039ac1a32ae56fef1783471 X-AOL-IP: 188.192.95.60 X-Scan-Signature: 3f12a6171cff302119f724e64afab799 Subject: Re: VLF: 8270: now 8269.990Hz Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01D18C73.D8A1DFF0" 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 X-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7559 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_0043_01D18C73.D8A1DFF0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The notion of correlated noise leading to identical false decodes is = intriguing. But with our receivers being five wavelengths apart, a = spatially distributed noise source (like a thunderstorm) would need to = be spatially confined to preserve phase coherence between receivers = (approximately within 6 degrees when looking broadside towards = north/south, somewhat wider to east-west). A Blitzortung.org map showed = only few lightning events in Europe between 22:00 and 2:30, but the = background may well have been dominated by distant storms in South = America. I have uploaded the wavs from Stefan and myself (along with other data) = to http://df6nm.bplaced.net/VLF/fec_tests/dj8wx_160331-0401/ (note that = our wavs have slightly different samplerates and start times so = resampling would be required before attempting correlation).=20 Suspiciously this happened with a transmission starting April 1st, 0:00 = local time. Wondering if Paul might have hidden an Easter egg in Ebnaut = for Windows ;-) Still got no visible carrier here from Uwe this afternoon. The 16 UT = message produced "PU" with 2.4 dB symbol / 0.2 dB carrier Eb/N0, again = not very trustworthy - I wonder what Stefan got this time... Best 73, Markus (DF6NM) From: Markus Vester=20 Sent: Friday, April 01, 2016 4:23 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: VLF: 8270: now 8269.990Hz GL, really? Very strange. Synchronous noise all over Germany? 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: DK7FC An: rsgb_lf_group Verschickt: Fr, 1 Apr 2016 3:42 pm Betreff: Re: VLF: 8270: now 8269.990Hz Hello Uwe,=20 Well, i'm also getting the message "GL" :-) Are you sure it was not GL? = ;-) No other decodes. Sorry.=20 But we will make it soon, the situation is always improving. 73, Stefan Am 01.04.2016 13:04, schrieb uwe-jannsen@kabelmail.de:=20 Markus, first: the decode is wrong second: same procedure today, start of message 16:00:00 third: pse try the decoder with redundency check (V0.4b) 73 Uwe PS. the carrier is on the air =20 Von: Markus Vester Gesendet: 01.04.2016 12:04 An: Betreff: Re: VLF: 8270: now 8269.990Hz =20 Hi Uwe, unfortunately static level was high, preventing your carriers before = and after the PSK from showing up in my spectrogram. The EbNaut decoder = produced "GL" at rank 13429 and -1 dB Eb/N0, but I have no clue whether = this message is really correct. Best 73, Markus ------=_NextPart_000_0043_01D18C73.D8A1DFF0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
The notion of correlated noise leading = to identical=20 false decodes is intriguing. But with = our=20 receivers being five wavelengths apart, a spatially = distributed noise=20 source (like a thunderstorm) would need to be spatially confined to = preserve phase coherence between receivers = (approximately within 6=20 degrees when looking broadside towards north/south, somewhat = wider to=20 east-west). A Blitzortung.org map=20 showed only few lightning events in Europe between 22:00 and 2:30, = but the=20 background may well have been dominated by distant storms in South=20 America.
 
I have uploaded the wavs from Stefan = and=20 myself (along with other data) to http:/= /df6nm.bplaced.net/VLF/fec_tests/dj8wx_160331-0401/ (note that our wavs have slightly different = samplerates=20 and start times so resampling would be required before attempting = correlation).=20
 
Suspiciously this happened with=20 a transmission starting April 1st, 0:00 local time. Wondering = if Paul=20 might have hidden an Easter egg in Ebnaut for Windows=20 ;-)
 
Still got no visible carrier here from=20 Uwe this afternoon. The 16 UT message produced "PU" with = 2.4 dB=20 symbol / 0.2 dB carrier Eb/N0, again not very trustworthy = - I=20 wonder what Stefan got this time...
 
Best 73,
Markus (DF6NM)
 

From: Markus Vester
Sent: Friday, April 01, 2016 4:23 PM
Subject: Re: VLF: 8270: now 8269.990Hz

GL, really? Very strange. = Synchronous noise all=20 over Germany?
 
73,=20 Markus


 
-----Urspr=C3=BCngliche=20 Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org= >Verschickt: Fr, 1 Apr 2016 3:42 pm
Betreff: = Re: VLF:=20 8270: now 8269.990Hz

Hello Uwe,=20

Well, i'm also getting the message "GL" = :-) Are you=20 sure it was not GL? ;-)
No other decodes. Sorry.
But=20 we will make it soon, the situation is always improving.
73, Stefan

Am 01.04.2016 = 13:04, schrieb uwe-jannsen@kabelmail.de:=20
Markus,
first:      =20   the decode is wrong
second: same procedure = today, start of=20 message 16:00:00
third:       pse=20 try the decoder with redundency check (V0.4b)

73Uwe
PS. the carrier is on the air
 =20 Von:=20 Markus Vester <markusvester@aol.com>
Gesendet: 01.04.2016 12:04
An:=20 <rsgb_lf_group@blacksheep.org>
Betreff: Re: VLF: 8270: now 8269.990Hz
 =20
Hi = Uwe,
 
unfortunately static level was high, = preventing your=20 carriers before and after the PSK from showing up in my=20 spectrogram. The EbNaut decoder produced "GL" at rank 13429 and = -1 dB=20 Eb/N0, but I have no clue whether this message is=20 really correct.
 
Best=20 73,
Markus
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