Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9EA7738000083; Sun, 17 Jun 2012 10:15:42 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SgGFi-00068x-UL for rs_out_1@blacksheep.org; Sun, 17 Jun 2012 15:14:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SgGFi-00068o-HY for rsgb_lf_group@blacksheep.org; Sun, 17 Jun 2012 15:14:54 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1SgGFh-00073m-0Q for rsgb_lf_group@blacksheep.org; Sun, 17 Jun 2012 15:14:53 +0100 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 q5HEEqum010446 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 17 Jun 2012 16:14:52 +0200 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 q5HEEqTc003432 for ; Sun, 17 Jun 2012 16:14:52 +0200 Message-ID: <4FDDE5F5.4000307@iup.uni-heidelberg.de> Date: Sun, 17 Jun 2012 16:13:09 +0200 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: <4FDCE611.7070004@iup.uni-heidelberg.de> <4FDCEB38.9090807@kpnmail.nl> In-Reply-To: <4FDCEB38.9090807@kpnmail.nl> X-Spam-Score: -0.7 (/) 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: Jan, MF, Am 16.06.2012 22:23, schrieb pa3abk: > > > FYI I have H24 solid CW QSO with g3xiz mostly S-7/8 about same > distance both using about 100W. I can hear G3XIZ very well on the Delft web sdr. It looks to me like the ground wave reaches much much wider above sea water. The effect seems to be extreme on MF, even more than on LF or VLF. Is this possible, i mean can you confirm it? Oh, that would explain why all the vessels used 500 kHz for such a long time :-) [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: e90dcb17768c7e768f13e0721cc1c0c7 Subject: LF: MF propagation... Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-SCORE: 0:2:335596864:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d61854fdde68e27c1 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Jan, MF, Am 16.06.2012 22:23, schrieb pa3abk: > > > FYI I have H24 solid CW QSO with g3xiz mostly S-7/8 about same > distance both using about 100W. I can hear G3XIZ very well on the Delft web sdr. It looks to me like the ground wave reaches much much wider above sea water. The effect seems to be extreme on MF, even more than on LF or VLF. Is this possible, i mean can you confirm it? Oh, that would explain why all the vessels used 500 kHz for such a long time :-) That would explain why you can hear G3XIZ H24, since you are much closer to the sea than me. Here on the land the situation looks to be quite different during the daytime... 73, Stefan/DK7FC