Return-Path: Received: from mtain-mb11.r1000.mx.aol.com (mtain-mb11.r1000.mx.aol.com [172.29.96.31]) by air-md02.mail.aol.com (v129.4) with ESMTP id MAILINMD021-8b784d08c1f835b; Wed, 15 Dec 2010 08:26:16 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb11.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4F74638000134; Wed, 15 Dec 2010 08:26:14 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PSrLU-0001Vb-MR for rs_out_1@blacksheep.org; Wed, 15 Dec 2010 13:24:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PSrLU-0001VS-6Z for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 13:24:40 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PSrLS-0004Nc-W5 for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 13:24:40 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id oBFDOcj1002465 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 15 Dec 2010 14:24:38 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id oBFDObfx024212 for ; Wed, 15 Dec 2010 14:24:37 +0100 Message-ID: <4D08C0DA.1030007@iup.uni-heidelberg.de> Date: Wed, 15 Dec 2010 14:21:30 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <2D9F1290-9246-4DFD-A0E6-D9D58DEF00AC@numeo.fr> <4D08A0AA.6040408@iup.uni-heidelberg.de> In-Reply-To: <4D08A0AA.6040408@iup.uni-heidelberg.de> X-Spam-Score: 1.6 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: VLF - distances achjeved Content-Type: multipart/alternative; boundary="------------060300080800080401050509" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY 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: 3039ac1d601f4d08c1f54eeb X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------060300080800080401050509 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id oBFDOcj1002465 Ah John, Sorry, there is another bug: The QTH of the kite antenna is JN49IS36VH=20 , near Darmstadt. The Earth antenna is in Heidelberg, JN49IK67=20 I have changed the entries in the list below. 73, Stefan Am 15.12.2010 12:04, schrieb Stefan Sch=E4fer: > Hi John, > > Am 15.12.2010 11:55, schrieb John Rabson: >> I am writing a piece on VLF for the Cave Radio & Electronics Group=20 >> Journal and would like to include distance records. Can people=20 >> please confirm that the following information is correct (or not)? >> >> >> Above-ground antennas >> >> >> Hz >> =20 >> ERP mW >> =20 >> From >> =20 >> To >> =20 >> km >> 8970 >> =20 >> 58 >> =20 >> Darmstadt >> =20 >> Israel/Haifa >> =20 >> 2873 >> 6470 >> =20 >> 9 >> =20 >> Darmstadt >> =20 >> Poland/Warshaw >> =20 >> 904 >> 5170 >> =20 >> 5 >> =20 >> Darmstadt >> =20 >> Poland/Warshaw >> =20 >> 904 >> >> =20 >> >> =20 >> >> =20 >> >> =20 >> >> > The QTH of SQ5BPF is Washaw. The rest is correct. >> >> Earth current antennas >> >> >> Hz >> =20 >> TX power W >> =20 >> Electrode spacing m >> =20 >> From >> =20 >> To >> =20 >> km >> 8970 >> =20 >> 250 >> =20 >> 600 >> =20 >> Heidelberg >> =20 >> Roschbach >> =20 >> 49.6 >> >> =20 >> =20 >> =20 >> =20 >> =20 >> >> =20 >> =20 >> =20 >> =20 >> =20 >> >> =20 >> =20 >> =20 >> =20 >> =20 >> > I did successful tests to Roschbach just on 8970 Hz, not on 6470 and=20 > 5170. The distance is 49.6 km (since my earth antenna QTH is different= =20 > to the kite antenna QTH). > > Thanks too. > > 73, Stefan/DK7FC >> >> Thank you. >> >> John F5VLF >> >> --------------060300080800080401050509 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Ah John,

Sorry, there is another bug: The QTH of the kite antenna is JN49IS36VH, near Darmstadt.
The Earth antenna is in Heidelberg, JN49IK67

I have changed the entries in the list below.

73, Stefan

Am 15.12.2010 12:04, schrieb Stefan Schäfer:
Hi John,

Am 15.12.2010 11:55, schrieb John Rabson:
I am writing a piece on VLF for the Cave Radio & Electronics Group Journal and would like to include distance records.  Can people please confirm that the following information is correct (or not)?


Above-ground antennas


Hz
ERP mW
From
To
km
8970
58
Darmstadt
Israel/Haifa
2873
6470
9
Darmstadt
Poland/Warshaw
904
5170
5
Darmstadt
Poland/Warshaw
904






The QTH of SQ5BPF is Washaw. The rest is correct.

Earth current antennas


Hz
TX power W
Electrode spacing m
From
To
km
8970
250
600
Heidelberg
Roschbach
49.6


















I did successful tests to Roschbach just on 8970 Hz, not on 6470 and 5170. The distance is 49.6 km (since my earth antenna QTH is different to the kite antenna QTH).

Thanks too.

73, Stefan/DK7FC

Thank you.

John F5VLF


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