Return-Path: Received: (qmail 9130 invoked from network); 4 Nov 2002 23:00:26 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 4 Nov 2002 23:00:26 -0000 Received: (qmail 2373 invoked by uid 10001); 5 Nov 2002 00:03:57 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 5 Nov 2002 00:03:57 -0000 Received: from majordom by post.thorcom.com with local (Exim 4.10) id 188qBZ-0006I9-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 04 Nov 2002 22:59:09 +0000 Received: from [194.73.73.93] (helo=rhenium.btinternet.com) by post.thorcom.com with esmtp (Exim 4.10) id 188qBZ-0006I0-00 for rsgb_lf_group@blacksheep.org; Mon, 04 Nov 2002 22:59:09 +0000 Received: from host213-122-186-56.in-addr.btopenworld.com ([213.122.186.56] helo=main) by rhenium.btinternet.com with smtp (Exim 3.22 #8) id 188qBY-0000Qc-00 for rsgb_lf_group@blacksheep.org; Mon, 04 Nov 2002 22:59:09 +0000 Message-ID: <000a01c28455$bdbd94c0$38ba7ad5@main> From: "Alan Melia" To: "LF-Group" Date: Mon, 4 Nov 2002 22:57:49 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Zetex chip..re SLM SSB demods Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=5.0tests=SPAM_PHRASE_02_03,USER_AGENT_OEversion=2.42 X-Spam-Level: * Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Hi all at Tracey's request I have been thumbing through my old Electronics Worlds. The data on the Zetex Mixer / filter chip type number ZXF30L01 is obtainable from http://www.zetex.com/pdf/ics/zxf36l01.pdf the best set of design competition finalists are in the Nov 2001 issue pp834-837. These include a Droitwhich frequency standard, an AM RX for 30kHz to 700kHz, an ultrasonic detector, and an CW/SSB detector and CW filter (800Hz) (I think this guy must have an SLMS !!) You need to provide a LO for the latter. I have a mono GIF scan of that circuit which is slightly too big (abt 45kB) for the reflector, but I will gladly forward it directly. What I cannot find is the Farnell part number, I only have an old catalogue but you should find it quickly through the web site....it may not be cheap!! As an aside I do have a couple of Racal 5002 wideband (20MHz) LMSs which are available for £50 each plus carriage. (they will both need new Li back-up batteries) Cheers de Alan G3NYK alan.melia@btinternet.com