Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 36D93380000AB; Mon, 21 Jan 2013 20:37:13 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TxSmR-0000L0-MG for rs_out_1@blacksheep.org; Tue, 22 Jan 2013 01:36:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TxSmR-0000Kr-5Q for rsgb_lf_group@blacksheep.org; Tue, 22 Jan 2013 01:36:03 +0000 Received: from nina.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1TxSmO-00054D-VX for rsgb_lf_group@blacksheep.org; Tue, 22 Jan 2013 01:36:02 +0000 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by nina.ucs.mun.ca (8.13.1/8.13.1) with ESMTP id r0M1Zce9013556 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 21 Jan 2013 22:05:38 -0330 Date: Mon, 21 Jan 2013 22:05:38 -0330 (NST) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: Message-ID: References: <8CFC5E9100D3878-19D0-1B385@webmail-d170.sysops.aol.com> MIME-Version: 1.0 X-MUN-Disclaimer: http://www.mun.ca/cc/policies/elect_communications_disclaimer_2012.php X-Spam-Score: -0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: On Mon, 21 Jan 2013, jcraig@mun.ca wrote: > Hi Markus, > > but was toying with the idea of doing WSPR via the RS232 and AD09850... > an excellent idea! > On the other hand, having just looked at the DF6NM code for the dds and WSPR and being most impressed by same, perhaps I should focus instead on seeking stability and coherence. [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 5c335215f1b3de26d890ee84d49616ce Subject: Re: xxSPAMxx Re: LF: AD9850 controlled by RS-232 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_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-global-disposition: G x-aol-sid: 3039ac1d618550fded495654 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none On Mon, 21 Jan 2013, jcraig@mun.ca wrote: > Hi Markus, > > but was toying with the idea of doing WSPR via the RS232 and AD09850... > an excellent idea! > On the other hand, having just looked at the DF6NM code for the dds and WSPR and being most impressed by same, perhaps I should focus instead on seeking stability and coherence. The plan is to multiply a 10 MHz OXCO by three and feed it to an AD9851. Could this be done with the gates of a TTL 7400 to take the sine to a nice rich square then to a 30 MHz tuned circuit to an output gate to the dds? Perhaps this is a silly idea. Either way, comments both negative and favourable will be appreciated. VX9MRC is still doing CW on 504.1 kHz. The carrier was generated by a home brewed ad9850 with tiny connecting wires painstakingly soldered to the pins. The boards Markus mentioned and Graham recommended a while back are well worth their cost! 73 Joe VO1NA This electronic communication is governed by the terms and conditions at http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php