Return-Path: Received: (qmail 32143 invoked from network); 24 Nov 2003 09:25:21 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 24 Nov 2003 09:25:21 -0000 Received: (qmail 12505 invoked from network); 24 Nov 2003 09:25:28 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from post.thorcom.com (193.82.116.20) by warrior.services.quay.plus.net with SMTP; 24 Nov 2003 09:25:22 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AOCr3-00071Q-Bu for rsgb_lf_group-outgoing@blacksheep.org; Mon, 24 Nov 2003 09:18:01 +0000 Received: from [134.58.240.41] (helo=nibbel.kulnet.kuleuven.ac.be) by post.thorcom.com with esmtp (Exim 4.14) id 1AOCr2-00070y-E9 for rsgb_lf_group@blacksheep.org; Mon, 24 Nov 2003 09:18:00 +0000 Received: from localhost (localhost [127.0.0.1]) by nibbel.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 3A78E4B601 for ; Mon, 24 Nov 2003 10:17:30 +0100 (CET) Received: from lepidus.kulnet.kuleuven.ac.be (lepidus.kulnet.kuleuven.ac.be [134.58.240.72]) by nibbel.kulnet.kuleuven.ac.be (Postfix) with ESMTP id C0EC34B5F2 for ; Mon, 24 Nov 2003 10:17:29 +0100 (CET) X-Fake-Domain: dell-rik.fys.kuleuven.ac.be Received: from dell-rik.fys.kuleuven.ac.be (pc-10-33-165-177.fys.kuleuven.ac.be [10.33.165.177]) by lepidus.kulnet.kuleuven.ac.be (Postfix) with ESMTP id 9DE86380002 for ; Mon, 24 Nov 2003 10:17:29 +0100 (CET) Message-ID: <5.1.0.14.0.20031124101459.01d0d0e0@u0019445.kuleuven.be> X-Sender: u0019445@u0019445.kuleuven.be X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 24 Nov 2003 10:19:03 +0100 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" In-reply-to: <002a01c3b269$733577e0$5ac428c3@bryan2> MIME-Version: 1.0 X-Virus-Scanned: by KULeuven Antivirus Cluster Subject: Re: LF: Re: Re: R: CT1/G3KEV Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Rating: 1 >I hold a 137 Khz special permit valid until 2005 and it says >135.7 to 137.8 Khz with a max ERP of 1 Watt. >Yes, you read it well 1 WATT only. Jose, We all have the 1 Watt ERP limit, it is implemented in the CEPT recommendation that allows ham operation on 137kHz. But keep in mind that antenna efficiency is extemely low on LF, most likely 0.1% or less. So you probably need more than 1kW TX power to get 1 Watt ERP. I guess that my ERP is about 30 to 50 mW, running 350 Watt RF power. Best DX is CW is OH1TN (about 1700km), so you can do a lot with just a few mW ERP. 73, Rik ON7YD