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[195.171.43.25]) by mx.google.com with ESMTP id u8si4314045wiy.64.2014.01.05.16.38.54 for ; Sun, 05 Jan 2014 16:38:54 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org; dkim=pass header.i=@mx.aol.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VzxR3-0002Uc-6w for rs_out_1@blacksheep.org; Sun, 05 Jan 2014 23:48:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VzxR2-0002UR-Bw for rsgb_lf_group@blacksheep.org; Sun, 05 Jan 2014 23:48:48 +0000 Received: from omr-m02.mx.aol.com ([64.12.143.76]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1VzxQy-0004Wi-LT for rsgb_lf_group@blacksheep.org; Sun, 05 Jan 2014 23:48:47 +0000 Received: from mtaout-mae02.mx.aol.com (mtaout-mae02.mx.aol.com [172.26.254.142]) by omr-m02.mx.aol.com (Outbound Mail Relay) with ESMTP id E963B70000081; Sun, 5 Jan 2014 18:48:40 -0500 (EST) Received: from White (95-91-238-155-dynip.superkabel.de [95.91.238.155]) by mtaout-mae02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 261003800009E; Sun, 5 Jan 2014 18:48:40 -0500 (EST) Message-ID: <379A6A06C1CA4AB6838535B3075123D8@White> From: "Markus Vester" To: Cc: "Paul" References: <4D3D3F8DEB844195AA057E71DA064D78@White> <05f101cf0a6d$80b36ff0$821a4fd0$@comcast.net> Date: Mon, 6 Jan 2014 00:48:34 +0100 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=20121107; t=1388965720; bh=1tUGwGRiK06fnFg6RGxmoO601sipoLyk3AGze/ynWmg=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=yk+LtVrNgpRv3jgMFR5JFXYMfDdybPEyhvlaqoxiTEEGEMtfOuluzBb3bTktpvQB0 afygkhdrK9YlVQNCQZ+LbH6hJ7Xl1Az2mF8BB03ePvmcMjlSGKJa+mcReAHFVu4rW6 7ScbYwsnaG/fnuPCMQBVZwYyLxc+zofuvts6eytA= x-aol-sid: 3039ac1afe8e52c9ef5804ce X-AOL-IP: 95.91.238.155 X-Spam-Score: 0.9 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Jim, thanks for the flowers - yes we were all excited about these possibilities. But it's still a long way to go to the other side of the pond... Paul mentioned that he is interested in possible overseas detections of eg. a long carrier from an amateur station. So it may be worthwhile for you to get in direct contact to him. Paul is also maintaining the Natural Radio VLF Discussion Group on Yahoo: http://tech.dir.groups.yahoo.com/neo/groups/VLF_Group/conversations/messages [...] Content analysis details: (0.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.143.76 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.1 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 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: 17acae084404f211678801ec6cbf7d97 Subject: Re: LF: RE: Opds-4H detections in Todmorden Content-Type: multipart/alternative; boundary="----=_NextPart_000_0070_01CF0A79.0718F370" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_0070_01CF0A79.0718F370 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Jim, thanks for the flowers - yes we were all excited about these = possibilities.=20 But it's still a long way to go to the other side of the pond... Paul = mentioned that he is interested in possible overseas detections of eg. a = long carrier from an amateur station. So it may be worthwhile for you to = get in direct contact to him. Paul is also maintaining the Natural Radio = VLF Discussion Group on Yahoo: = http://tech.dir.groups.yahoo.com/neo/groups/VLF_Group/conversations/messa= ges Best 73, Markus =20 From: hvanesce=20 Sent: Monday, January 06, 2014 12:25 AM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: RE: Opds-4H detections in Todmorden Markus, Paul, Stefan and Uwe, =20 Outstanding collaboration and individual work! This is quite exciting. = Directionally optimized 55uHz VLF Opera rings in the new year on a very = memorable note. =20 Markus, was your TX configuration ~.3A to 9m, ~ 20uW? =20 Thank you for the good news, and the fine collaboration. =20 73, Jim AA5BW =20 =20 =20 =20 From: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus Vester Sent: Sunday, January 5, 2014 3:15 PM To: rsgb_lf_group@blacksheep.org Cc: Paul Subject: VLF: Opds-4H detections in Todmorden =20 Most who are interested in VLF will be aware of the excellent work of = Paul Nicholson, who is running a very sensitive dual-loop receiver for = VLF and natural radio in Todmorden UK. He is also actively interested in = monitoring man-made VLF signals, and has provided outstanding reception = reports on several low-power transmit experiments. =20 With the recent upsurge of trying to put Opera mode to work at VLF, Paul = has kindly provided spectrum data during announced Opera-4H = transmissions from DJ8WX and myself. In Todmorden, signals from the two = loops are continuously being digitized along with GPS time stamps. The = loops were combined in software for maximum SNR from the expected = direction, and noise blanking was applied. Then relevant five-hour = chunks were Fourier transformed (0.12 Hz around 8970 Hz, 54.936 =B5Hz = bin width) and emailed to me. Here the files were fed to unmodified Opds = correlation software, using a search list containing nine callsigns from = potential VLF transmit stations = http://dl.dropboxusercontent.com/u/26404526/callsloc_vlf.txt. This = process has resulted in four unambiguous hits: =20 Receiver: Paul Nicholson IO83XQ Opds-4H 8969.94 - 8972.06 Hz date time call distance frequency bandwidth snr = correlation 2014-01-02 06:14:01 DJ8WX 760km 8969.997Hz 0mHz -54.1dBOp 100% = 17.2dB 2014-01-02 01:50:49 DJ8WX 760km 8969.997Hz 0mHz -55.0dBOp 100% = 18.0dB 2014-01-01 16:36:38 DJ8WX 760km 8969.990Hz 0mHz -53.6dBOp 100% = 16.4dB 2014-01-01 14:22:32 DF6NM 1026km 8970.000Hz 0mHz -59.1dBOp 100% = 16.3dB =20 For comparison, my first two Op-4H transmissions on Dec 31st had been = successfully detected by Stefan in Heidelberg, but have not produced = sufficient SNR in Todmorden at the time. =20 Receiver: DK7FC JN49IK VLF OPDS-4H correlation Range: 8969.87 ... = 8970.23 Hz date time call distance frequency bandwidth snr = correlation 2013-12-31 22:30:04 DF6NM 175km 8970.000Hz 0mHz -60.3dBOp 82% = 14.2dB 2013-12-31 18:07:58 DF6NM 175km 8970.000Hz 0mHz -58.3dBOp 100% = 17.0dB =20 Today we were able to also extract transmissions on Uwe's new frequency = 8270 Hz, although the SNR seemed not as good as before: =20 Receiver: Paul Nicholson IO83XQ Opds-4H 8269.94 - 8272.06 Hz date time call distance frequency bandwidth snr = correlation 2014-01-05 07:18:54 DJ8WX 760km 8270.000Hz 0mHz -57.2dBOp 97% = 15.1dB 2014-01-05 02:55:38 DJ8WX 760km 8270.000Hz 0mHz -56.1dBOp 100% = 14.4dB 2014-01-04 22:32:14 DJ8WX 760km 8270.000Hz 0mHz -57.6dBOp 100% = 12.8dB =20 Currently Uwe has another transmission ongoing, and the carrier is = visible on Paul's spectrogram = http://abelian.org/vlf/fbins2.shtml#b=3D080&s=3Dsp =20 Many thanks to Paul, Uwe, Stefan, and all who have contributed to this = fine success! =20 Best 73, Markus (DF6NM) =20 ------=_NextPart_000_0070_01CF0A79.0718F370 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Jim, thanks for=20 the flowers - yes we were all excited about these possibilities. =
 
But it's still a long way to go to = the other=20 side of the pond... Paul mentioned = that he=20 is interested in possible overseas detections of eg. a long carrier = from an=20 amateur station. So it may be worthwhile for you to get in direct = contact to=20 him. Paul is also = maintaining the=20 Natural Radio VLF Discussion Group on Yahoo: http://tech.dir.groups.yahoo.com/neo/groups/VLF_Group/conver= sations/messages
 
Best 73,
Markus

 
From: hvanesce
Sent: Monday, January 06, 2014 12:25 AM
To: rsgb_lf_group@blacksheep.org= =20
Subject: LF: RE: Opds-4H detections in = Todmorden

Markus,=20 Paul, Stefan and Uwe,

 

Outstanding=20 collaboration and individual work! This is quite exciting. Directionally = optimized 55uHz VLF Opera rings in the new year on a very memorable=20 note.

 

Markus,=20 was your TX configuration ~.3A to 9m, ~ 20uW?

 

Thank=20 you for the good news, and the fine collaboration.

 

73, =20 Jim AA5BW

  

 

 

 

From: owner-rsgb_lf_group@bl= acksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus=20 Vester
Sent: Sunday, January 5, 2014 3:15 PM
To:=20 rsgb_lf_group@blacksheep.org
Cc: Paul
Subject: VLF: = Opds-4H=20 detections in Todmorden

 

Most who = are=20 interested in VLF will be aware of the excellent work of Paul Nicholson, = who is=20 running a very sensitive dual-loop receiver for VLF and natural radio in = Todmorden UK. He is also actively interested in monitoring man-made VLF = signals,=20 and has provided outstanding reception reports on several low-power = transmit=20 experiments.

 

With the = recent=20 upsurge of trying to put Opera mode to work at VLF, Paul has kindly = provided=20 spectrum data during announced Opera-4H transmissions from DJ8WX and = myself. In=20 Todmorden, signals from the two loops are continuously being digitized = along=20 with GPS time stamps. The loops were combined in software for maximum = SNR from=20 the expected direction, and noise blanking was applied. Then relevant = five-hour=20 chunks were Fourier transformed (0.12 Hz around 8970 Hz, 54.936 =B5Hz = bin width)=20 and emailed to me. Here the files were fed to unmodified Opds = correlation=20 software, using a search list containing nine callsigns from potential = VLF=20 transmit stations htt= p://dl.dropboxusercontent.com/u/26404526/callsloc_vlf.txt.=20 This process has resulted in four unambiguous=20 hits:

 

Receiver: = Paul=20 Nicholson  IO83XQ   Opds-4H   8969.94 - 8972.06 = Hz
   date      time  =20 call   distance  frequency bandwidth  = snr   =20 correlation
2014-01-02 06:14:01 DJ8WX    = 760km  =20 8969.997Hz   0mHz -54.1dBOp 100% 17.2dB
2014-01-02 01:50:49 = DJ8WX    760km   8969.997Hz   0mHz = -55.0dBOp=20 100% 18.0dB
2014-01-01 16:36:38 DJ8WX    = 760km  =20 8969.990Hz   0mHz -53.6dBOp 100% 16.4dB
2014-01-01 14:22:32 = DF6NM   1026km   8970.000Hz   0mHz = -59.1dBOp 100%=20 16.3dB

 

For = comparison, my=20 first two Op-4H transmissions on Dec 31st had been successfully detected = by=20 Stefan in Heidelberg, but have not produced sufficient SNR in Todmorden = at the=20 time.

 

Receiver: = DK7FC=20 JN49IK VLF OPDS-4H correlation  Range: 8969.87 ... 8970.23=20 Hz
   date      time  =20 call   distance  frequency bandwidth  = snr   =20 correlation
2013-12-31 22:30:04 DF6NM    = 175km  =20 8970.000Hz   0mHz -60.3dBOp  82% 14.2dB
2013-12-31 = 18:07:58=20 DF6NM    175km   8970.000Hz   0mHz = -58.3dBOp=20 100% 17.0dB

 

Today we = were able to=20 also extract transmissions on Uwe's new frequency 8270 Hz, although the = SNR=20 seemed not as good as before:

 

Receiver: = Paul=20 Nicholson  IO83XQ   Opds-4H   8269.94 - 8272.06 = Hz
   date      time  =20 call   distance  frequency bandwidth  = snr   =20 correlation
2014-01-05 07:18:54 DJ8WX    = 760km  =20 8270.000Hz   0mHz -57.2dBOp  97% 15.1dB
2014-01-05 = 02:55:38=20 DJ8WX    760km   8270.000Hz   0mHz = -56.1dBOp=20 100% 14.4dB
2014-01-04 22:32:14 DJ8WX    = 760km  =20 8270.000Hz   0mHz -57.6dBOp 100% = 12.8dB

 

Currently = Uwe has=20 another transmission ongoing, and the carrier is visible on Paul's = spectrogram=20 http://ab= elian.org/vlf/fbins2.shtml#b=3D080&s=3Dsp
 
Many=20 thanks to Paul, Uwe, Stefan, and all who have contributed to this fine=20 success!

 

Best = 73,
Markus=20 (DF6NM)
 

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