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[195.171.43.25]) by mx.google.com with ESMTP id sg12si4003507wic.23.2014.04.24.08.42.26 for ; Thu, 24 Apr 2014 08:42:28 -0700 (PDT) Received-SPF: none (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) smtp.mail=owner-rsgb_lf_group@blacksheep.org; dkim=pass header.i=@mx.aol.com; dmarc=pass (p=REJECT dis=NONE) header.from=aol.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WdLNJ-0003EO-Bc for rs_out_1@blacksheep.org; Thu, 24 Apr 2014 16:15:45 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WdLNI-0003EF-Sa for rsgb_lf_group@blacksheep.org; Thu, 24 Apr 2014 16:15:44 +0100 Received: from omr-m10.mx.aol.com ([64.12.143.86]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.82) (envelope-from ) id 1WdLNG-0007ZX-Ea for rsgb_lf_group@blacksheep.org; Thu, 24 Apr 2014 16:15:43 +0100 Received: from mtaomg-mcb01.mx.aol.com (mtaomg-mcb01.mx.aol.com [172.26.50.175]) by omr-m10.mx.aol.com (Outbound Mail Relay) with ESMTP id 71BD67025A97F for ; Thu, 24 Apr 2014 11:15:36 -0400 (EDT) Received: from core-afa07d.mail.aol.com (core-afa07.mail.aol.com [172.27.24.7]) by mtaomg-mcb01.mx.aol.com (OMAG/Core Interface) with ESMTP id C56A738000081 for ; Thu, 24 Apr 2014 11:15:35 -0400 (EDT) References: To: rsgb_lf_group@blacksheep.org In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: AOL Webmail BASIC Received: from 194.138.39.56 by webmail-m268.sysops.aol.com (64.12.145.229) with HTTP (WebMailUI); Thu, 24 Apr 2014 11:15:35 -0400 Message-Id: <8D12DE72D0B1F77-20A8-A111@webmail-m268.sysops.aol.com> X-Originating-IP: [194.138.39.56] Date: Thu, 24 Apr 2014 11:15:35 -0400 (EDT) x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1398352536; bh=Fq8qxuLWC33efNWVL4owvApmfgcV7GURKdBRvZrAbHQ=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=gyd/C6QD17V5cEcVdZoY02YySt9UpNNoc4R/b3Ih4p3oW6ubwOH2L0XP6qb7wbOsx mIbaBndfJQcI6F1p4Y3we0zUkjdGFN2j0yYk7gUNxsqu5mrXRPp/PGFvULNIM7Z1FE cvwpZmbnjhVGwwJmruuq3tQpjA+AoJrbo1mEohWM= x-aol-sid: 3039ac1a32af53592a972068 X-Spam-Score: 0.4 (/) 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: Laura,  very well, you are a keen observer! Yes I'm aware of the 2nd order intermodulation, happening in the low current BCY58 preamp stages which are powered by a DC level present at the notebook's microphone input. There's also a strong 9 kHz beat from AM broadcast carriers. I'll need to provide some lowpass filtering at the input.  Compared to the E-field antenna, the loops seem to pick up a lot of 50 Hz harmonics from adjacent underground cables, but apparently less of the 16.7 Hz modulated junk from the railway line. [...] Content analysis details: (0.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.143.86 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 -0.7 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: eeb98d9e5f7535b37e24952fd7f85252 Subject: Re: Aw: VLF: Ebino vs Anthorn on colour-DF ;-) Content-Type: multipart/alternative; boundary="--------MB_8D12DE72D2550C8_20A8_231D6_webmail-m268.sysops.aol.com" 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=FORGED_AOL_TAGS,HTML_30_40, HTML_FONTCOLOR_UNKNOWN,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. ----------MB_8D12DE72D2550C8_20A8_231D6_webmail-m268.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Laura, =C2=A0 very well, you are a keen observer! Yes I'm aware of the 2nd order intermod= ulation, happening in the low current BCY58 preamp stages which=C2=A0are=C2= =A0powered by=C2=A0a DC level present at the notebook's microphone input. T= here's also a strong 9 kHz beat from AM broadcast carriers. I'll need to pr= ovide some lowpass filtering at the input. =C2=A0 Compared to the E-field antenna, the loops seem to pick up a lot=C2=A0of 50= Hz harmonics from=C2=A0adjacent underground cables, but apparently less of= the 16.7 Hz=C2=A0modulated junk from the railway line. Best 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: LZ <Laura.Zepam@gmx.de> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org> Verschickt: Do, 24 Apr 2014 3:00 pm Betreff: Aw: VLF: Ebino vs Anthorn on colour-DF ;-) =20 Hi Markus,=20 =20 You wrote:=20 > Watch it live: http://www.df6nm.de/vlf/vlfgrabber.htm=20 =20 Looks impressive and encouraging...=20 =20 May be there are spurii from EFR visible at =20 14 kc (down-mixed/folded)=20 and =20 9.9 kc (intermod DCF49/DCF39)?=20 =20 Laura=20 =20 Sent from my Watson-Watt-Phone=20 =20 ----------MB_8D12DE72D2550C8_20A8_231D6_webmail-m268.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Laura,
 
very well,= you are a keen observer! Yes I'm aware of the 2nd order intermodulation, h= appening in the low current BCY58 preamp stages which are powered= by a DC level present at the notebook's microphone input. There's als= o a strong 9 kHz beat from AM broadcast carriers. I'll need to provide some= lowpass filtering at the input.
 
Compared t= o the E-field antenna, the loops seem to pick up a lot of 50 Hz harmon= ics from adjacent underground cables, but apparently less of the 16.7 = Hz modulated junk from the railway line.
Best 73,
Markus

-----Urspr=C3=BCngliche Mitteilung-----
Von: LZ <Laura.Zepam@gmx.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 24 Apr 2014 3:00 pm
Betreff: Aw: VLF: Ebino vs Anthorn on colour-DF ;-)




 

Hi Markus, 

 

You wrote: 

> Watch it live: http://www.df6nm.de/vlf/vlfgrabber.htm 

 

Looks impressive and encouraging... 

 

May be there are spurii from EFR visible at  

14 kc (down-mixed/folded) 

and  

9.9 kc (intermod DCF49/DCF39)? 

 

Laura 

 

Sent from my Watson-Watt-Phone


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