Return-Path: Received: from rly-df10.mx.aol.com (rly-df10.mail.aol.com [172.19.156.23]) by air-df06.mail.aol.com (v125.7) with ESMTP id MAILINDF063-5824aec2db6139; Sat, 31 Oct 2009 08:29:58 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df10.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDF105-5824aec2db6139; Sat, 31 Oct 2009 08:29:44 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1N4D4d-0004OY-5J for rs_out_1@blacksheep.org; Sat, 31 Oct 2009 12:28:51 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1N4D4c-0004OP-Ls for rsgb_lf_group@blacksheep.org; Sat, 31 Oct 2009 12:28:50 +0000 Received: from mail-bw0-f221.google.com ([209.85.218.221]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1N4D2r-0005JW-KP for rsgb_lf_group@blacksheep.org; Sat, 31 Oct 2009 12:27:02 +0000 Received: by bwz21 with SMTP id 21so4634370bwz.4 for ; Sat, 31 Oct 2009 05:28:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=DyRfqBl5KTAhGba3DRlF6D4O/GssN/KE/7pGV71A3Pk=; b=C0Z7QDFwwy7QUlyL2ctW+aDsYA/NbgsJVuPuJOo1zYGTl2iWFZtY65xtnMFfDsNCXA nYPgE/8jZRhn+xfudnPc1izyqx5CgD8Fw1H3rVhuW5bZFqWL5Xve5x1eLijzcJHdulms Si1WRWQob7fGZTrfLvdM5Oi/l1Ws5/uVos2wE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=sr5uonjEG+RDTRQ9WqkwG+SU8BfscZLNikL62HzXrXAi+Amme1byyogYHOPxZ+nGfY V4LJXWbOu0HO8S2va6V5qFMhjrpK9CwM1b8IqjOBc5HWTEZy8C7X4wKizyisj89ZGIxK VqG0VVGlkBctaXLIU/oFwqX1qa2aMhP3/CpCY= MIME-Version: 1.0 Received: by 10.204.151.208 with SMTP id d16mr2064766bkw.115.1256992111066; Sat, 31 Oct 2009 05:28:31 -0700 (PDT) Date: Sat, 31 Oct 2009 12:28:31 +0000 Message-ID: <9afca2640910310528p4f07557aifdc0557a68bfeff8@mail.gmail.com> From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org X-Karma: unknown: DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: 500kHz attenuation graphs? Content-Type: multipart/alternative; boundary=0015175cd19a43ffa404773a48fc 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=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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m235.1 ; domain : gmail.com DKIM : fail X-Mailer: Unknown (No Version) --0015175cd19a43ffa404773a48fc Content-Type: text/plain; charset=ISO-8859-1 Can someone please point me to any CCIR or similar graphs (preferably on the internet) showing the attenuation with distance expected on groundwave and skywave at 500kHz? 73s Roger G3XBM -- ------------------------------------------------------------- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk G3XBM GQRP 1678 ISWL G11088 --0015175cd19a43ffa404773a48fc Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Can someone please point me to any CCIR or similar graphs (preferably on= the internet) showing the attenuation with distance expected on groundwav= e and skywave at 500kHz?

73s
Roger G3XBM

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