Return-Path: Received: from rly-me07.mx.aol.com (rly-me07.mail.aol.com [172.20.83.41]) by air-me10.mail.aol.com (v121.4) with ESMTP id MAILINME102-9c947de6c7165; Mon, 17 Mar 2008 09:04:58 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me07.mx.aol.com (v121.4) with ESMTP id MAILRELAYINME075-9c947de6c7165; Mon, 17 Mar 2008 09:04:56 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JbF0l-0006Xi-T1 for rs_out_1@blacksheep.org; Mon, 17 Mar 2008 13:04:19 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JbF0l-0006XZ-Bw for rsgb_lf_group@blacksheep.org; Mon, 17 Mar 2008 13:04:19 +0000 Received: from ug-out-1314.google.com ([66.249.92.175]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JbF0d-0003NP-1j for rsgb_lf_group@blacksheep.org; Mon, 17 Mar 2008 13:04:18 +0000 Received: by ug-out-1314.google.com with SMTP id a2so873555ugf.13 for ; Mon, 17 Mar 2008 06:03:48 -0700 (PDT) Received: by 10.67.27.3 with SMTP id e3mr2885862ugj.22.1205759028316; Mon, 17 Mar 2008 06:03:48 -0700 (PDT) Received: by 10.66.244.4 with HTTP; Mon, 17 Mar 2008 06:03:48 -0700 (PDT) Message-ID: Date: Mon, 17 Mar 2008 13:03:48 +0000 From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Disposition: inline X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: WSPR DDS calculations Content-Type: text/plain; charset=ISO-8859-1 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: domain : post.thorcom.com ; SPF_helo = n X-AOL-SCOLL-AUTHENTICATION: domain : googlemail.com ; SPF_822_from = ? X-Mailer: Unknown (No Version) For anyone wanting to build WSPR mode into a DDS based beacon source, I've added the calculation for generating the frequency increment value given the DDS clock, and RF multiplication. See http://www.scrbg.org/g4jnt/beacons.htm and look for DDSBeacons.zip for a collection of utilities for designing DDS based beacons. -- Andy G4JNT www.scrbg.org/g4jnt