Return-Path: Received: from mtain-mg10.r1000.mx.aol.com (mtain-mg10.r1000.mx.aol.com [172.29.96.210]) by air-mc05.mail.aol.com (v129.4) with ESMTP id MAILINMC054-a96a4cc70c75177; Tue, 26 Oct 2010 13:14:30 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4437C3800020F; Tue, 26 Oct 2010 13:14:28 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PAn5F-0005CA-9F for rs_out_1@blacksheep.org; Tue, 26 Oct 2010 18:13:13 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PAn5E-0005C1-TZ for rsgb_lf_group@blacksheep.org; Tue, 26 Oct 2010 18:13:12 +0100 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PAn5C-0005IL-Kb for rsgb_lf_group@blacksheep.org; Tue, 26 Oct 2010 18:13:12 +0100 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o9QHDClK029868 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 26 Oct 2010 19:13:13 +0200 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o9QHD9db017706 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 26 Oct 2010 19:13:09 +0200 Received: from [147.142.9.71] (vpn509-071.rzuser.uni-heidelberg.de [147.142.9.71]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id o9QHCgqT028002 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 26 Oct 2010 19:12:43 +0200 Message-ID: <4CC70C27.6020202@iup.uni-heidelberg.de> Date: Tue, 26 Oct 2010 19:13:11 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Simple, low cost, 8.970kHz stable source? Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.0 required=5.0 tests=none 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-global-disposition: G x-aol-sid: 3039ac1d60d24cc70c740688 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) Hi Roger, For example this: http://www.elv.de/DDS-Board,-20-MHz,-Komplettbausatz-(mit-Poti,-ohne-Sinus-Endstufe-AD-811)/x.aspx/cid_74/detail_10/detail2_6325/flv_1/bereich_/marke_ 73, Stefan Am 26.10.2010 19:04, schrieb Roger Lapthorn: > What do people think is the simplest, lowest cost, way of generating a > stable 8.970kHz frequency that does not require a PC when running? I > thought of an HF crystal divided down by 256 (from 2.296320MHz), but > have you tried to buy a "made to order" crystal lately? > > 73 > Roger G3XBM > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > G3XBM GQRP 1678 ISWL G11088