Return-Path: Received: from mtain-md02.r1000.mx.aol.com (mtain-md02.r1000.mx.aol.com [172.29.96.86]) by air-di03.mail.aol.com (v129.4) with ESMTP id MAILINDI031-eabe4d08a1a3364; Wed, 15 Dec 2010 06:08:19 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9D329380001D9; Wed, 15 Dec 2010 06:08:17 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PSpCc-000052-9v for rs_out_1@blacksheep.org; Wed, 15 Dec 2010 11:07:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PSpCZ-00004t-PG for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 11:07:19 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PSpCY-0003SU-G6 for rsgb_lf_group@blacksheep.org; Wed, 15 Dec 2010 11:07:19 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id oBFB7HFT010233 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 15 Dec 2010 12:07:17 +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 oBFB7HLa018365 for ; Wed, 15 Dec 2010 12:07:17 +0100 Message-ID: <4D08A0AA.6040408@iup.uni-heidelberg.de> Date: Wed, 15 Dec 2010 12:04:10 +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> In-Reply-To: <2D9F1290-9246-4DFD-A0E6-D9D58DEF00AC@numeo.fr> 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="------------030709060901040804020404" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_60_70,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: 3039ac1d60564d08a1a162a2 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------030709060901040804020404 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 > > Heidelberg > > Israel > > 2873 > 6470 > > 9 > > Heidelberg > > Breclav > > 904 > 5170 > > 5 > > Heidelberg > > Breclav > > 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 > > 72 > 6470 > > 250 > > 600 > > Heidelberg > > Roschbach > > 72 > 5170 > > 250 > > 600 > > Heidelberg > > Roschbach > > 72 > > > > > > > > > > > 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 > > --------------030709060901040804020404 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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
Heidelberg
Israel
2873
6470
9
Heidelberg
Breclav
904
5170
5
Heidelberg
Breclav
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
72
6470
250
600
Heidelberg
Roschbach
72
5170
250
600
Heidelberg
Roschbach
72






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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