Return-Path: Received: from mtain-mi02.r1000.mx.aol.com (mtain-mi02.r1000.mail.aol.com [172.21.131.155]) by air-db03.mail.aol.com (v129.4) with ESMTP id MAILINDB033-86454c21b57910b; Wed, 23 Jun 2010 03:19:21 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mi02.r1000.mx.aol.com (Internet Inbound) with ESMTP id D1071380000A0; Wed, 23 Jun 2010 03:19:19 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ORKDy-0002fw-Qr for rs_out_1@blacksheep.org; Wed, 23 Jun 2010 08:18:18 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ORKDy-0002fn-Ct for rsgb_lf_group@blacksheep.org; Wed, 23 Jun 2010 08:18:18 +0100 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1ORKDx-00060P-H5 for rsgb_lf_group@blacksheep.org; Wed, 23 Jun 2010 08:18:18 +0100 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 342FE51C00E for ; Wed, 23 Jun 2010 09:18:08 +0200 (CEST) Received: from ICTS-S-HUB-N1.luna.kuleuven.be (icts-s-hub-n1.luna.kuleuven.be [10.112.9.11]) by smtps02.kuleuven.be (Postfix) with ESMTP id 1DA1DF3862 for ; Wed, 23 Jun 2010 09:18:08 +0200 (CEST) Received: from ICTS-S-EXC2-CA.luna.kuleuven.be ([10.112.11.13]) by ICTS-S-HUB-N1.luna.kuleuven.be ([10.112.9.11]) with mapi; Wed, 23 Jun 2010 09:18:08 +0200 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Date: Wed, 23 Jun 2010 09:15:25 +0200 Thread-Topic: VLF QRP Earth mode: 5.1km DX tonight but no such thing as a free lunch Thread-Index: AcsSWCwKWxHCZ5O1RoWFopU4zx922wASMfpsAAC5brQ= Message-ID: References: , In-Reply-To: Accept-Language: nl-NL, nl-BE Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: nl-NL, nl-BE MIME-Version: 1.0 X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Spam-Score: 0.7 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,SUBJ_HAS_SPACES=0.651 Subject: LF: RE: VLF QRP Earth mode: 5.1km DX tonight but no such thing as a free lunch Content-Type: multipart/alternative; boundary="_000_BF4A524700075746A6467658DFC7102C5107CB12ADICTSSEXC2CAlu_" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.6 required=5.0 tests=HTML_40_50,HTML_FONTCOLOR_BLUE, HTML_MESSAGE,SUBJ_HAS_SPACES,TO_ADDRESS_EQ_REAL 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 x-aol-global-disposition: G x-aol-sid: 3039400cdeca4c21b577654c X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --_000_BF4A524700075746A6467658DFC7102C5107CB12ADICTSSEXC2CAlu_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yet another thought: salt water is a rather good conductor. What about a couple of rods into the sea near Dover and another pair near= Cap Griz Nez ? Distance is 34 km. 73, Rik ON7YD ________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.or= g] namens Rik Strobbe [Rik.Strobbe@fys.kuleuven.be] Verzonden: woensdag 23 juni 2010 9:00 Aan: rsgb_lf_group@blacksheep.org Onderwerp: LF: RE: VLF QRP Earth mode: 5.1km DX tonight but no such thing= as a free lunch 1. At greater distances (3-5kms) the signal reaches its destination by= conduction through the ground aided by pipes in the roads and with induct= ive coupling into the loop at the RX. Roger, very interesting. There are huge gas pipelines running across the country (and even across= Europe). I wonder how far one would get with a ground antenna near one of these. The 2 rods of the ground antenna each at one side of the pipeline would gi= ve optimal coupling. 73, Rik ON7YD --_000_BF4A524700075746A6467658DFC7102C5107CB12ADICTSSEXC2CAlu_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yet another thought:
 
salt water is a rather good conducto= r.
What about a couple of rods into the=  sea near Dover and another pair near Cap Griz Nez ?
Distance is 34 km.
 
73, Rik  ON7YD
 
Van: owner-rsgb_= lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Rik St= robbe [Rik.Strobbe@fys.kuleuven.be]
Verzonden: woensdag 23 juni 2010 9:00
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF: RE: VLF QRP Earth mode: 5.1km DX tonight but no such= thing as a free lunch

  1. At greater distances (3-5kms) the sign= al reaches its destination by conduction through the ground aided by pipes= in the roads and with inductive coupling into the loop at the RX.
Roger,=
 
very interesting.=
There are huge gas pipel= ines running across the country (and even across Europe).
I wonder how far one wou= ld get with a ground antenna near one of these.
The 2 rods of the ground= antenna each at one side of the pipeline would give optimal coupling.
 
73, Rik  ON7YD
 
 
 
 
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