Return-Path: Received: from mtain-dd03.r1000.mx.aol.com (mtain-dd03.r1000.mx.aol.com [172.29.64.143]) by air-mc08.mail.aol.com (v129.4) with ESMTP id MAILINMC083-a98d4c25b2fa7d; Sat, 26 Jun 2010 03:57:46 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dd03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 426C338000127; Sat, 26 Jun 2010 03:57:40 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OSQFj-0007qX-99 for rs_out_1@blacksheep.org; Sat, 26 Jun 2010 08:56:39 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OSQFi-0007qO-PB for rsgb_lf_group@blacksheep.org; Sat, 26 Jun 2010 08:56:38 +0100 Received: from mail-ww0-f43.google.com ([74.125.82.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OSQFh-0001NC-Hq for rsgb_lf_group@blacksheep.org; Sat, 26 Jun 2010 08:56:38 +0100 Received: by wwe15 with SMTP id 15so926584wwe.16 for ; Sat, 26 Jun 2010 00:56:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=0L/hsCdRucqVrOQWs+7fa4+sybdWHFvODhlQggfJrAY=; b=xO51RHvBfkppt96zWglxQvacIphfOsM6Bg6dzQd094y/fNlVu0cuiRs3ZCCgJ0eI2S jWrakSAQ2PxLhtU+Dmy29W4MIp/G2axAkqGtbrBrrE/MA8yWSUV2HYHUm//cEDuY5W4v Z77bd1Go4+wWqo1LvXGc85Ey4Iipn2q+bmRUY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=BoOvDP7vu1LTMVi5Ig6j5eHAZnbH+xocOoBTCzKpu3sDYJBWFuG2Grh3NMUSnIURIY YvC3Flr+JMfEDcjePkUaqoiem+raBAs4jKl2p7m3zQttBA+bK/xFIKheeIEmRECN2vk3 k7vgqjmcWpROJftiwKkGzIPR1RixhtYm86I74= MIME-Version: 1.0 Received: by 10.216.90.76 with SMTP id d54mr5891381wef.83.1277538991091; Sat, 26 Jun 2010 00:56:31 -0700 (PDT) Received: by 10.216.52.7 with HTTP; Sat, 26 Jun 2010 00:56:31 -0700 (PDT) In-Reply-To: <4C25AE1F.7060807@gmx.com> References: <4C23FC42.8040204@iup.uni-heidelberg.de> <38A51B74B884D74083D7950AD0DD85E82A1C66@File-Server-HST.hst.e-technik.tu-darmstadt.de> <4C25AE1F.7060807@gmx.com> Date: Sat, 26 Jun 2010 08:56:31 +0100 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: AW: VLF: 5,2 km distance on 8,97 kHz with an earth antenna Content-Type: multipart/alternative; boundary=0016e6d778ddc0307d0489ea39cf 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_20_30, HTML_FONTCOLOR_UNSAFE,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 x-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d254.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d408f4c25b2f429c2 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --0016e6d778ddc0307d0489ea39cf Content-Type: text/plain; charset=ISO-8859-1 This is what Stefan is doing Mike. For information, WSPR takes up about 6Hz bandwidth and this is huge when compared with the extremely narrow bandwidths possible with very slow QRSS. Without being able to integrate signals over a long period of time in a very narrow bandwidth it would be impossible to see Stefan's signal at all. 73s Roger G3XBM On 26 June 2010 08:37, Mike-WE0H wrote: > Stefan, > > How about transmitting a WSPR signal or some other digital signal? > > Mike-WE0H > EN35hj > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 --0016e6d778ddc0307d0489ea39cf Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable This is what Stefan is doing Mike.

For information, WSPR takes up= about 6Hz bandwidth and this is huge when compared with the extremely nar= row bandwidths possible with very slow QRSS. Without being able to integra= te signals over a long period of time in a very narrow bandwidth it would= be impossible to see Stefan's signal at all.

73s
Roger G3XBM

On 26 June 2010= 08:37, Mike-WE0H <we= 0h@gmx.com> wrote:
Stefan,

How about transmitting a WSPR signal or some other digital signal?

Mike-WE0H
EN35hj




--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM =A0 =A0GQRP 1678 =A0 =A0 =A0ISWL G11088
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