X-GM-THRID: 1203350633376413987 X-Gmail-Labels: rsgb lf X-Gmail-Received: 41e51e7ea8e9ea1c77b1fe8a49d01cb3d765427a Delivered-To: daveyxm@gmail.com Received: by 10.54.72.5 with SMTP id u5cs7021wra; Sun, 14 May 2006 13:41:05 -0700 (PDT) Received: by 10.49.10.9 with SMTP id n9mr2851331nfi; Sun, 14 May 2006 13:41:04 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id p43si2521273nfa.2006.05.14.13.41.04; Sun, 14 May 2006 13:41:04 -0700 (PDT) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1FfNMo-0002T1-Tg for rs_out_1@blacksheep.org; Sun, 14 May 2006 21:39:06 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1FfNMo-0002Ss-B1 for rsgb_lf_group@blacksheep.org; Sun, 14 May 2006 21:39:06 +0100 Received: from imo-m27.mx.aol.com ([64.12.137.8]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1FfOsV-0003Yq-BB for rsgb_lf_group@blacksheep.org; Sun, 14 May 2006 23:15:59 +0100 Received: from MarkusVester@aol.com by imo-m27.mx.aol.com (mail_out_v38_r7.5.) id l.46a.45f280 (30739) for ; Sun, 14 May 2006 16:38:53 -0400 (EDT) From: MarkusVester@aol.com Message-ID: <46a.45f280.3198ef5d@aol.com> Date: Sun, 14 May 2006 16:38:53 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 6104 X-Spam-Flag: NO X-Spam-Score: -0.8 (/) X-Spam-Report: autolearn=disabled,AWL=-1.111,HTML_50_60=0.095,HTML_MESSAGE=0.001,NO_REAL_NAME=0.178 Subject: Re: LF: DCF39 ERP and field strength Content-Type: multipart/alternative; boundary="part1_46a.45f280.3198ef5d_boundary" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_30_40,HTML_MESSAGE, HTML_TAG_BALANCE_HTML,NO_REAL_NAME 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 Status: O X-Status: X-Keywords: X-UID: 5427 --part1_46a.45f280.3198ef5d_boundary Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Hi Jos=E9, though it is not explicitely mentioned in the caption beneath Geri's and=20 Gamal's curve, I think their data actually mean a power of 40 kW EMRP (i.e.=20= 125.6=20 dB=B5V/m at 1 km). Here at 310 km, I see 70 dB=B5V/m with about 6 dB groundw= ave=20 absorption. Despite this slightly higher EMRP, your measurement would still imply=20 basically lossless low-angle skywave propagation. 73 de Markus, DF6NM In einer eMail vom 14.05.2006 13:00:23 Westeurop=E4ische Sommerzeit schreibt= =20 jpradoes@telefonica.net:=20 > Hello all > =20 > In the web of Geri, DK8KW, can be seen that DCF39 ERP is 40KW (22KW EMRP),= =20 > based on measurements made by Geri some years ago. For this radiater power= =20 > corresponds, at 1800 Km, in function of inverse of distance, 58 dB(uV/m);=20= last=20 > nigth I made measurement of 60 dB(uV/m), so I wonder if still DCF39=B4s po= wer is=20 > the same as before, and if the previous theorical field strength, with no=20 > reflection loss, can be exceeded some times due to the several propagation= =20 > factors involved. > =20 > 73 de Jos=E9, EA1PX >=20 --part1_46a.45f280.3198ef5d_boundary Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Hi Jos=E9,

though it is not explicitely mentioned in the caption beneath Geri's and Gam= al's curve, I think their data actually mean a power of 40 kW EMRP (i.e. 125= .6 dB=B5V/m at 1 km). Here at 310 km, I see 70 dB=B5V/m with about 6 dB grou= ndwave absorption.

Despite this slightly higher EMRP, your measurement would still imply basica= lly lossless low-angle skywave propagation.

73 de Markus, DF6NM

In einer eMail vom 14.05.2006 13:00:23 Westeurop=E4ische Sommerzeit schreibt= jpradoes@telefonica.net:

Hello all
 
In the web of Geri, DK8KW, can be seen that DCF39 ERP is 40KW (22KW EMRP),=20= based on measurements made by Geri some years ago. For this radiater power c= orresponds, at 1800 Km, in function of inverse of distance, 58 dB(uV/m); las= t nigth I made measurement of 60 dB(uV/m), so I wonder if still DCF39=B4s po= wer is the same as before, and if the previous theorical field strength, wit= h no reflection loss, can be exceeded some times due to the several propagat= ion factors involved.
 
73 de Jos=E9, EA1PX


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