Return-Path: Received: from mtain-mc08.r1000.mx.aol.com (mtain-mc08.r1000.mx.aol.com [172.29.96.80]) by air-mf05.mail.aol.com (v129.4) with ESMTP id MAILINMF054-8bec4c62f0c7240; Wed, 11 Aug 2010 14:49:44 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mc08.r1000.mx.aol.com (Internet Inbound) with ESMTP id 31134380077C6; Wed, 11 Aug 2010 13:25:24 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OjF2R-0002af-Tz for rs_out_1@blacksheep.org; Wed, 11 Aug 2010 18:24:27 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OjF2R-0002aW-Hi for rsgb_lf_group@blacksheep.org; Wed, 11 Aug 2010 18:24:27 +0100 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OjF2Q-0003W4-Vl for rsgb_lf_group@blacksheep.org; Wed, 11 Aug 2010 18:24:27 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqMIAAd6YkxOk8Ja/2dsb2JhbACPOgOQa2MOvR2FOgSMOA X-IronPort-AV: E=Sophos;i="4.55,354,1278284400"; d="scan'208,217";a="457208729" Received: from unknown (HELO xphd97xgq27nyf) ([78.147.194.90]) by out1.ip07ir2.opaltelecom.net with SMTP; 11 Aug 2010 18:24:19 +0100 Message-ID: <002001cb397a$055bd990$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Wed, 11 Aug 2010 18:24:14 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 1.2 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,SUBJ_ALL_CAPS=1.166 Subject: LF: ERP DISTANCE ETC Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01CB3982.66CA8070" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.0 required=5.0 tests=HTML_20_30,HTML_MESSAGE, SUBJ_ALL_CAPS 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-sid: 3039ac1d60504c62dd047fb2 X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_001D_01CB3982.66CA8070 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Lots of figures appearing on here at present are guesswork and mislead= ing. This has happened in the past trying to guess who was running wha= t power, then the conclusion was + or - 6 to 10 dB wich is nonsense ie= could be !W or 4W or !W or 10W. For those complaining about no room= for large antennas, use the best elevated antenna you can get up and= run several K/Watts to achieve the required ERP. Earth antennas have also been tested in the past are only useful for= Cave radio communications, the wheel keeps being reinvented here on= LF. G3KEV ------=_NextPart_000_001D_01CB3982.66CA8070 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Lots of figures appearing on here at= present are=20 guesswork and misleading. This has happened in the past trying to gues= s who was=20 running what power, then the conclusion was + or - 6 to 10 dB wich is= nonsense=20 ie could be !W or 4W or !W or 10W. For those complaining about no= room for=20 large antennas, use the best elevated antenna you can get up and run= several=20 K/Watts to achieve the required ERP.
Earth antennas have also been tested= in the past=20 are only useful for Cave radio communications, the wheel keeps being= reinvented=20 here on LF.
G3KEV
 
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