Return-Path: Received: from mtain-df01.r1000.mx.aol.com (mtain-df01.r1000.mx.aol.com [172.29.64.213]) by air-di06.mail.aol.com (v129.4) with ESMTP id MAILINDI062-eacb4cc70d1a38d; Tue, 26 Oct 2010 13:17:14 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df01.r1000.mx.aol.com (Internet Inbound) with ESMTP id C39D73800016C; Tue, 26 Oct 2010 13:17:11 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PAn7v-0005Lv-Iu for rs_out_1@blacksheep.org; Tue, 26 Oct 2010 18:15:59 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PAn7v-0005Lj-4t for rsgb_lf_group@blacksheep.org; Tue, 26 Oct 2010 18:15:59 +0100 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PAn7q-0005N5-EG for rsgb_lf_group@blacksheep.org; Tue, 26 Oct 2010 18:15:59 +0100 Received: by iwn35 with SMTP id 35so1144300iwn.16 for ; Tue, 26 Oct 2010 10:15:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=pCWVFLk+5w70LIfU/h5lzTwLQyRgBbo51XJQexZaVPo=; b=rT+jQLDE0Bey+FSoIjN5GeVk2K2UpRpMb+TmLkzffWTBZxUL86aGfRg+qRYNda8tpW h9ISU6ZxoimAu0zcGjjBc6s9SWwS5rFSh9sDTJ49QixRYB5hbUb5kL6DoHzIWyK/kysN JrrSwHAuWNQMWSeQ8LL0+jZkNZP6bXAMgYO08= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=mrm+AJGJFkThi6ZJe6kpjAw1NbBMWam8rfYMyAAkdTnUUHXpWNvbbaqvmScp8ADJ4o 7/qJqchiCxB5bEPaICJ4nnPCtUPx1GOJzTnEvgk1KmUR3CZwdcghUzP2jzPi+2zyf7hp keI48A1DImbDaPMSvaL7kMI2pZMV8K+9xZxIQ= MIME-Version: 1.0 Received: by 10.231.15.4 with SMTP id i4mr2518426iba.73.1288113350510; Tue, 26 Oct 2010 10:15:50 -0700 (PDT) Received: by 10.231.79.69 with HTTP; Tue, 26 Oct 2010 10:15:50 -0700 (PDT) In-Reply-To: References: Date: Tue, 26 Oct 2010 18:15:50 +0100 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Simple, low cost, 8.970kHz stable source? Content-Type: multipart/alternative; boundary=00221532cbb4b094770493884249 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE 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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d223.1 ; domain : googlemail.com DKIM : pass x-aol-sid: 3039ac1d40d54cc70d173ae3 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --00221532cbb4b094770493884249 Content-Type: text/plain; charset=ISO-8859-1 DDS, there are several kits around now (but I've run out of mine :-( Synthesizer, followed by a divider http://www.g4jnt.com/VHF_Synth_Module.pdf DDS implemented in a PIC - it is just about possible, playing with code at the moment Transceiver divided down Andy www.g4jnt.com On 26 October 2010 18:04, Roger Lapthorn wrote: > 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 > --00221532cbb4b094770493884249 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
DDS, there are several=A0kits around now (but I've run out of min= e :-(
Synthesizer, followed by a divider=A0=A0 http://www.g4jnt.com/VHF_Synth_Module.pdf
DDS implemented in a PIC - it is just about possible, playing with co= de at the moment
Transceiver divided down
=A0
On 26 October 2010 18:04, Roger Lapthorn <rogerlapthorn@= gmail.com> wrote:
What do people think is the si= mplest, lowest cost, way of generating a stable 8.970kHz frequency that do= es 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 orde= r" crystal lately?

73
Roger G3XBM
--
http://g3xbm-qrp.blogspot.com/<= /a>
http://www.g3= xbm.co.uk
http://www= .youtube.com/user/g3xbm
G3XBM=A0=A0 GQRP 1678=A0=A0=A0 ISWL G11088<= br>

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