Return-Path: Received: from rly-md07.mx.aol.com (rly-md07.mail.aol.com [172.20.29.145]) by air-md08.mail.aol.com (v121_r4.4) with ESMTP id MAILINMD082-9114948d1091d2; Wed, 17 Dec 2008 05:14:53 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md07.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMD071-9114948d1091d2; Wed, 17 Dec 2008 05:14:35 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LCtPn-0004Q6-Nf for rs_out_1@blacksheep.org; Wed, 17 Dec 2008 10:14:03 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LCtPn-0004Px-7k for rsgb_lf_group@blacksheep.org; Wed, 17 Dec 2008 10:14:03 +0000 Received: from pne-smtpout2-sn1.fre.skanova.net ([81.228.11.159]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LCtPk-00023w-QN for rsgb_lf_group@blacksheep.org; Wed, 17 Dec 2008 10:14:03 +0000 Received: from [127.0.0.1] (62.20.250.99) by pne-smtpout2-sn1.fre.skanova.net (7.3.129) (authenticated as u33233109) id 4843FAEB02EF016A for rsgb_lf_group@blacksheep.org; Wed, 17 Dec 2008 11:13:55 +0100 Message-ID: <4948D0E4.9020403@telia.com> Date: Wed, 17 Dec 2008 11:13:56 +0100 From: "Johan H. Bodin" User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000b01c95ed5$a2cda180$4201a8c0@home> <017701c95fb3$2e39e2a0$6401a8c0@asus> <20081216211341.k5n9k2c6zg8woooo@webmail4.kuleuven.be> <49482306.2010007@telia.com> <20081217074851.609FD31E702@smtps01.kuleuven.be> In-Reply-To: <20081217074851.609FD31E702@smtps01.kuleuven.be> X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: RE: Re: whisper 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-Mailer: Unknown (No Version) Hello Rik, Some information can be found here: http://physics.princeton.edu/pulsar/K1JT/WSPR_Announcement.TXT In addition to the "WSPR-only" program, the WSPR mode is also available in the new WSJT7 program which is an open source project: http://developer.berlios.de/projects/wsjt/ WSPR decoding is somewhat more complicated than transmitting... (understatement of the year :-) ) K1JT kindly added a message output function in an early command line version of the WSPR program. This can be used to generate a list of symbols to be used in a stand-alone beacon. The message consists of 162 symbols where each symbol is 0..3 corresponding to FSK tones lowest..highest. Each symbol, or "baud", conveys 2 bits of information. Unfortunately, the old WSPR program is no longer on K1JT's home page but I have a copy here if you need it (WSPR v0.3 r90). A new QSO mode has been added to the WSPR protocol (in WSJT7) but I have no idea how it works. (who wants to have QSOs anyway... ;-) ) BTW, there is a very nice real time WSPR database at www.wsprnet.org. Click database or map. 73 de Johan SM6LKM ---- Rik Strobbe wrote: > interesting. > Are the specifications of WSPR (coding scheme, shifts etc ..) somewhere > available ? > > 73, Rik ON7YD - OR7T