Return-Path: Received: (qmail 7 invoked from network); 5 Jun 2001 12:38:08 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 5 Jun 2001 12:38:08 -0000 Received: (qmail 19065 invoked from network); 5 Jun 2001 12:37:18 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 5 Jun 2001 12:37:18 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 157Fv7-0000fV-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 05 Jun 2001 13:26:49 +0100 Received: from cmailg6.svr.pol.co.uk ([195.92.195.176]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 157Fv5-0000fQ-00 for rsgb_lf_group@blacksheep.org; Tue, 05 Jun 2001 13:26:47 +0100 Received: from modem-52.monkeyface-eel.dialup.pol.co.uk ([62.137.40.180] helo=g3aqc) by cmailg6.svr.pol.co.uk with smtp (Exim 3.13 #0) id 157FuT-0005lX-00 for rsgb_lf_group@blacksheep.org; Tue, 05 Jun 2001 13:26:09 +0100 Message-ID: <001d01c0edba$b0acf9c0$b428893e@g3aqc> From: "Laurie Mayhead" To: rsgb_lf_group@blacksheep.org Subject: LF: Re. 73KHz tests Date: Tue, 5 Jun 2001 13:23:51 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit

Hi Peter,

I dont think Ko's findings are too far out. Please forget my mistake, R.res calculated should read 0.02 ohms. If we take your estimated Rad.pwr of 23.2 mW and increase it by 8db (x6.31) this gives 146.4mW which is not too far from my estimated 125mW.The difference ,assuming Ko's figure is correct, is either your ERP is a bit down on your Rad.pwr which seems most likely,or my 125mW ERP should be a bit higher.I am assuming the same local losses as on 136 in calculating this figure.I hav'nt been out to check it yet. Either way they tie up quite well in the imperfect world we operate in,and thanks Ko for the comparison. 73s Laurie.