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[195.171.43.25]) by mx.google.com with ESMTP id p8si4794234wic.108.2014.03.29.15.43.17 for ; Sat, 29 Mar 2014 15:43:17 -0700 (PDT) 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 1WU1eT-0002mf-JZ for rs_out_1@blacksheep.org; Sat, 29 Mar 2014 22:22:57 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WU1eS-0002mU-VT for rsgb_lf_group@blacksheep.org; Sat, 29 Mar 2014 22:22:56 +0000 Received: from omr-m01.mx.aol.com ([64.12.143.75]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.82) (envelope-from ) id 1WU1eQ-000113-6a for rsgb_lf_group@blacksheep.org; Sat, 29 Mar 2014 22:22:55 +0000 Received: from mtaout-mba01.mx.aol.com (mtaout-mba01.mx.aol.com [172.26.133.109]) by omr-m01.mx.aol.com (Outbound Mail Relay) with ESMTP id 49391700000A3 for ; Sat, 29 Mar 2014 18:22:52 -0400 (EDT) Received: from White (95-91-237-52-dynip.superkabel.de [95.91.237.52]) by mtaout-mba01.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 727623800008C for ; Sat, 29 Mar 2014 18:22:49 -0400 (EDT) Message-ID: <43AA6D08247842058A49BCA793E7BF18@White> From: "Markus Vester" To: References: ,<7ED357143A1943C88C092049CD10E3D1@White> Date: Sat, 29 Mar 2014 23:20:26 +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=1396131772; bh=KYvfdoH7xZS/OLO5rffvRBK7TLnPc9xAh3VOpEo214E=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=HdUNGWMG5NT5yyOpQWoUSDl7i/wEnJx5p+ySl0Z/vZ1yq9vo+le3/z+7S6GA1MsUs cVS8CZq4lmtZmdpxazV6U7PN1f4403BXsGwWOSJ27DYYskKY91Zq8j70AGJByvpykg K6bFZAdkNLq+bSkAc4/K3FBwPqVJ7CkL189OAIU8= x-aol-sid: 3039ac1a856d533747b93fe4 X-AOL-IP: 95.91.237.52 X-Spam-Score: 0.6 (/) 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: Bob, well I guess I'm sort if lucky on 29.5 as there happens to be little QRM here from big utility stations, railway, etc. Even local QRM has been scarce (though I hardly dare write that, as one of our twenty-odd neighbour families may any time corrupt the frequency by a nasty SMPS / battery charger / energy saving lamp / modem / you name it). Extrapolating received Opds-2H levels to QRSS would result in needing something like 10 minute dots, so not really encouraging. [...] Content analysis details: (0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.143.75 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 -0.4 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: ccc04899dbdbe78a3093b8d21fefef60 Subject: Re: LF: Re: Bunch of detects! Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01CF4BA5.77B918E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,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_0006_01CF4BA5.77B918E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bob, well I guess I'm sort if lucky on 29.5 as there happens to be = little QRM here from big utility stations, railway, etc. Even local QRM = has been scarce (though I hardly dare write that, as one of our = twenty-odd neighbour families may any time corrupt the frequency by a = nasty SMPS / battery charger / energy saving lamp / modem / you name = it). Extrapolating received Opds-2H levels to QRSS would result in = needing something like 10 minute dots, so not really encouraging. Regarding 8.3 kHz: I guess everyone working there is limited by antenna = voltage / corona, and as you say usually not much power is needed to get = to that limit. Assuming same voltage capability (eg 30 kV), going down = from 29.5 to 8.3 you'll need to reduce current by a factor of 3.5, = decreasing ERP by 22 dB. On the other hand, Paul Nicholson was able to = resolve your 2-minute dots on 29.5, thus in a quiet night, an 8 hour = continuous carrier on 8270 might just become detectable in Todmorden. In = addition, Paul's http://abelian.org/vlf/ lists several online VLF = receivers sending high quality audio streams, and I reckon a reception = eg by Mike Smith in Forest / Virginia would be quite likely and good DX = for starters. =20 73, Markus (DF6NM) From: Bob Raide=20 Sent: Saturday, March 29, 2014 8:26 PM To: rsgb_lf_group@blacksheep.org=20 Subject: RE: LF: Re: Bunch of detects! Markus; 29 is about it for me. I like to see some of the other modes get = detected but so far just not enough signal for any real QRSS from like = Henny, and Hartmut. Your OPDS sure works but many still have work to do = to get detections at -52 or so. What QRSS speed would I need for you to = get a decent capture on 29 QRSS??? OP2HDS is going to be hard to beat. The OPERA DS detects have been very impressive from your QTH and you are = in amongst other houses! Others have for the time being stopped work on = VLF reception. Hope next season there will be improvements in that = area. If I could run enough power on 9 kHz I would try it but I see very nasty = voltages being generated with this short ant. I'll go back to 29 tomorrow night with OP2H and hope for another = detection from you and maybe someone else T/A. Your the furthest = European other than the Russians so should see others with detections = sooner or later I would think-Bob =20 =20 -------------------------------------------------------------------------= ------- From: markusvester@aol.com To: rsgb_lf_group@blacksheep.org Date: Sat, 29 Mar 2014 20:04:44 +0100 Subject: LF: Re: Bunch of detects! Bob, thanks for the signal, nice to find all those good detections! Tomorrow? Swing low! For me, the lower and slower, the better. And give = the Opera guys a chance for a TA decode on 29.5 kHz ;-) Actually, why not go sub 8.3 kHz one night, and provide a fair challenge = to Paul Nicholson. All you'll need to do is wind up a couple of = kilometers of thin magnet wire (say AWG26) on a plastic bucket ;-) Have a good weekend, 73, Markus From: Bob Raide=20 Sent: Saturday, March 29, 2014 4:48 PM To: Markus Vester ; rsgb_lf_group@blacksheep.org ; Bob Raide=20 Subject: Bunch of detects! Markus; Was easy to find clear spot with your grabber. Condx seemed good and = made a bunch of detects I see!=20 Will do again tonight same freq. If you want-maybe tomorrow try 74 or back to VLF 29kHz if you want-Bob ------=_NextPart_000_0006_01CF4BA5.77B918E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bob, well I guess I'm sort if lucky on = 29.5 as=20 there happens to be little QRM here from big utility stations, railway, = etc.=20 Even local QRM has been scarce (though I hardly dare write = that, as=20 one of our twenty-odd neighbour families may any time corrupt the = frequency by a=20 nasty SMPS / battery charger / energy saving lamp / modem / you name = it).=20 Extrapolating received Opds-2H levels to QRSS would result in = needing=20 something like 10 minute dots, so not really = encouraging.
 
Regarding 8.3 kHz: I guess everyone = working there=20 is limited by antenna voltage / corona, and as you say usually not much = power is=20 needed to get to that limit. Assuming same voltage capability (eg = 30 kV),=20 going down from 29.5 to 8.3 you'll need to reduce current by a factor of = 3.5, decreasing ERP by 22 dB. On the other hand, Paul Nicholson was = able to=20 resolve your 2-minute dots on 29.5, thus in a quiet night, an 8 hour = continuous=20 carrier on 8270 might just become detectable in Todmorden. In=20 addition, Paul's http://abelian.org/vlf/ lists=20 several online VLF receivers sending high quality audio streams, = and I=20 reckon a reception eg by Mike Smith in Forest / Virginia would be = quite=20 likely and good DX for starters.  
 
73,
Markus (DF6NM)
 

From: Bob Raide
Sent: Saturday, March 29, 2014 8:26 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: RE: LF: Re: Bunch of detects!

Markus;
29 is about it for me.  I like to see = some of the=20 other modes get detected but so far just not enough signal for any real = QRSS=20 from like Henny, and Hartmut.  Your OPDS sure works but many still = have=20 work to do to get detections at -52 or so.  What QRSS speed would I = need=20 for you to get a decent capture on 29 QRSS??? OP2HDS is going to be = hard to=20 beat.
The OPERA DS detects have been very impressive from your QTH = and you=20 are in amongst other houses!  Others have for the time being = stopped work=20 on VLF reception.  Hope next season there will be improvements in = that=20 area.
If I could run enough power on 9 kHz I would try it but I = see very=20 nasty voltages being generated with this short ant.
I'll go back to = 29=20 tomorrow night with OP2H and hope for another detection from you and = maybe=20 someone else T/A.  Your the furthest European other than the = Russians so=20 should see others with detections sooner or later I would=20 think-Bob  
 
From: markusvester@aol.com
To: rsgb_lf_group@blacksheep.org
Date: = Sat, 29=20 Mar 2014 20:04:44 +0100
Subject: LF: Re: Bunch of detects!

Bob,
 
thanks for the signal, nice to = find all=20 those good detections!
 
Tomorrow? Swing low! For = me, the=20 lower and slower, the better. And give the Opera guys a chance = for a=20 TA decode on 29.5 kHz ;-)
 
Actually, why not go sub 8.3 = kHz one=20 night, and provide a fair challenge to Paul = Nicholson. All you'll=20 need to do is wind up a couple of kilometers of=20 thin magnet wire (say AWG26) on a plastic bucket = ;-)
 
Have a good weekend,
 
73, Markus
 

From: Bob Raide
Sent: Saturday, March 29, 2014 4:48 PM
To: Markus Vester ; rsgb_lf_group@blacksheep.org= ; Bob Raide
Subject: Bunch of detects!

Markus;
Was easy to find clear spot with your = grabber. =20 Condx seemed good and made a bunch of detects I see!
Will do again = tonight=20 same freq.
If you want-maybe tomorrow try 74  or back to VLF = 29kHz if=20 you want-Bob
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