Delivered-To: daveyxm@virginmedia.com Received: by 10.50.237.98 with SMTP id vb2csp51378igc; Sat, 11 Jan 2014 15:08:44 -0800 (PST) X-Received: by 10.194.133.135 with SMTP id pc7mr14838651wjb.51.1389481723856; Sat, 11 Jan 2014 15:08:43 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id hj12si4140655wib.50.2014.01.11.15.08.42 for ; Sat, 11 Jan 2014 15:08:43 -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 1W27FZ-0005PH-Ta for rs_out_1@blacksheep.org; Sat, 11 Jan 2014 22:41:53 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1W27FZ-0005P8-Dj for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 22:41:53 +0000 Received: from omr-m05.mx.aol.com ([64.12.143.79]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1W27FX-0005cO-49 for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 22:41:52 +0000 Received: from mtaout-mab02.mx.aol.com (mtaout-mab02.mx.aol.com [172.26.249.82]) by omr-m05.mx.aol.com (Outbound Mail Relay) with ESMTP id E93A4701B0BCA for ; Sat, 11 Jan 2014 17:41:47 -0500 (EST) Received: from White (95-91-238-155-dynip.superkabel.de [95.91.238.155]) by mtaout-mab02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 2322E380000A7 for ; Sat, 11 Jan 2014 17:41:47 -0500 (EST) Message-ID: <0C132D5F54254AD7B9E88091C3B83C24@White> From: "Markus Vester" To: References: ,<45C914842E044970AE255AC43CA09FB3@White>, , , <52D1C27A.4040305@gmail.com> Date: Sat, 11 Jan 2014 23:41:44 +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=1389480107; bh=tKx+VwQ+FJqjis48prBHCi0/gnX64Plpec/kZxdAntU=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=diAhbmJZM/gsOSk90nJ6y8krTUpu8YFi7rNIwGF2hlmBe0NVc5zX+J55dwVuwD5m2 M07oexyDTnARdfvnsbxFUo1Y1qLUkq9MTOIrsqqjdt20BLtlVPwoQRCOlN94qj32qv tpIMI8cbVFl5UCyGmFQC+wLYm10+5G6YVSgbE/C4= x-aol-sid: 3039ac1af95252d1c8ab7d96 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 Dex, ...well, poor results - guess it's all relative to expectations. When we started more than a decade ago, we went out of our gardens with aural receivers, and were pretty disappointed we couldn't hear anything beyond a couple of hundred meters. Then we played with Argo and QRSS, but (at least for me) it was still a long way until we managed to overcome the near field boundary to the "true" radiation regime (5.3 km at 9 kHz). Going to milliHz resolution bandwidth turned out to be essential. Then in March 2010 Stefan came along with his kite - the rest is history ;-) [...] 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 [64.12.143.79 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: ab7de7439a3fce0b74220375dc6f18e8 Subject: Re: VLF: 8270 (antenna and grounding) Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01CF0F26.AF40B0E0" 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_0020_01CF0F26.AF40B0E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Dex, ...well, poor results - guess it's all relative to expectations. When we = started more than a decade ago, we went out of our gardens with aural = receivers, and were pretty disappointed we couldn't hear anything beyond = a couple of hundred meters. Then we played with Argo and QRSS, but (at = least for me) it was still a long way until we managed to overcome the = near field boundary to the "true" radiation regime (5.3 km at 9 kHz). = Going to milliHz resolution bandwidth turned out to be essential. Then = in March 2010 Stefan came along with his kite - the rest is history ;-) In my eyes it's a well worthwhile field of experimentation, with lots of = things to learn. Don't forget, the first transatlantic detection is = still waiting out there... Best 73, Markus (DF6NM) PS had a typo regarding the effective height of my antenna - it's 8 m, = not 80 cm. From: Dexter McIntyre W4DEX=20 Sent: Saturday, January 11, 2014 11:15 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: VLF: 8270 (antenna and grounding) Bob Raide wrote: > Markus; > Proves you don't need an exotic ground system and 40 meter tall = antenna! I had poor results a few years ago loading my LF antenna on 9 kHz. Of=20 course there are those who know how to make most anything work and there = are those who don't. If Markus couldn't make it work I doubt anyone=20 could.=20 Guess it's time for more trial and error engineering.=20 Dex ------=_NextPart_000_0020_01CF0F26.AF40B0E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Dex,
 
...well, poor results - guess it's all = relative to=20 expectations. When we started more than a decade ago, we went out=20 of our gardens with aural receivers, and were pretty disappointed = we=20 couldn't hear anything beyond a couple of hundred meters. Then we = played=20 with Argo and QRSS, but (at least for me) it was still a long way=20 until we managed to overcome the near field boundary to the = "true"=20 radiation regime (5.3 km at 9 kHz). Going to milliHz resolution=20 bandwidth turned out to be essential. Then in March 2010 = Stefan came=20 along with his kite - the rest is history ;-)
 
In my eyes it's a well worthwhile field = of=20 experimentation, with lots of things to learn. Don't forget, the first=20 transatlantic detection is still waiting out there...
 
Best 73,
Markus (DF6NM)
 
PS had a typo regarding the = effective height=20 of my antenna - it's 8 m, not 80 cm.

Sent: Saturday, January 11, 2014 11:15 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: VLF: 8270 (antenna and = grounding)

Bob = Raide=20 wrote:
> Markus;
> Proves you don't need an exotic ground = system and=20 40 meter tall antenna!
I had poor results a few years ago loading my = LF=20 antenna on 9 kHz.  Of
course there are those who know how to = make most=20 anything work and there
are those who don't.  If Markus = couldn't make=20 it work I doubt anyone
could.

Guess it's time for more trial = and=20 error engineering.

Dex

------=_NextPart_000_0020_01CF0F26.AF40B0E0--