Return-Path: Received: from rly-ma05.mx.aol.com (rly-ma05.mail.aol.com [172.20.116.49]) by air-ma07.mail.aol.com (v123.4) with ESMTP id MAILINMA073-8a949db0e8933; Tue, 07 Apr 2009 04:28:03 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma05.mx.aol.com (v123.4) with ESMTP id MAILRELAYINMA053-8a949db0e8933; Tue, 07 Apr 2009 04:27:55 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Lr6da-00085n-Hm for rs_out_1@blacksheep.org; Tue, 07 Apr 2009 09:26:30 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Lr6da-00085e-5p for rsgb_lf_group@blacksheep.org; Tue, 07 Apr 2009 09:26:30 +0100 Received: from smtp815.mail.ird.yahoo.com ([77.238.189.20]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Lr6dY-0001xD-BE for rsgb_lf_group@blacksheep.org; Tue, 07 Apr 2009 09:26:30 +0100 Received: (qmail 57421 invoked from network); 7 Apr 2009 08:25:21 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=D487eXRo7fdFuQRcaEy8HmXHtiPoS+HFupHh0Y3//mnIkW++x1GZW+1IXjnxIZH+TV5f4oWPwykBObqud/B5CcLuu7O102P0gqSzVtA3j3ttpo9VD5liY5YczjW43eUhdhA8SZSNheqkvFaFNMoqu0zUzHGLh3qglybyVbqvetY= ; Received: from unknown (HELO JimPC) (james.moritz@86.135.206.173 with login) by smtp815.mail.ird.yahoo.com with SMTP; 7 Apr 2009 08:25:20 -0000 X-YMail-OSG: geGhb9wVM1kn5iCc5T.0md7qbKdiDUcXf2X.9jzh9KbAZecp5FxtD9hb2GUdUS1yofKZCnWU0GuI4tLLPpqAqAf8hbsE33k9G9.sb6mCkrA455yfsYIgHbSXEcz6Lu1rYbvKcg0svZSB9CeJyIiCFRaUHeC4ii4yKkq.4IJ3FOYL2sFn9yLyJuE4wRFpxH.glJ4QAutZpz9TSJp88mE4T2LQunkFcaaf9lknh50Z0Ji0pEhmYQm3QKmPIq587zg_VgExRz478TaaA0B11hra_aDDicNPth8Zzvt2oQ8O7hz4HCPvS1GgbKWk.GREewiFJbp8QvAsc2pFR6vIMcaS8ZF_5pm2Odo- X-Yahoo-Newman-Property: ymail-3 Message-ID: <616ABE862AB74E7AA28F352AB8BC29F6@JimPC> From: "James Moritz" To: Date: Tue, 7 Apr 2009 09:25:20 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: EER Transverter update Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_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 X-AOL-IP: 193.82.116.20 Dear LF Group I have uploaded an updated version of my EER transverter article (EER_Transverter_v3.pdf) to the UK500kHz group site files page http://groups.google.com/group/uk500khz/files. The main updates are new PA and modulator designs for 500k and 136k with 200W PEP output. Also, the transverter limiting amplifier design has been improved to produce a more accurate 50% duty cycle over a wider signal input range. Any comments welcome - especially if you notice any mistakes! Cheers, Jim Moritz 73 de M0BMU