Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id tB3L193f008559 for ; Thu, 3 Dec 2015 22:01:09 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1a4awr-0007Ht-Ai for rs_out_1@blacksheep.org; Thu, 03 Dec 2015 20:57:53 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1a4awr-0007Hk-00 for rsgb_lf_group@blacksheep.org; Thu, 03 Dec 2015 20:57:53 +0000 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1a4avq-0005MF-5B for rsgb_lf_group@blacksheep.org; Thu, 03 Dec 2015 20:57:51 +0000 Received: from sb.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by parrot.netcom.co.uk (Postfix) with ESMTP id D75A33273A5 for ; Thu, 3 Dec 2015 20:47:35 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id F3BD028A062B for ; Thu, 3 Dec 2015 20:56:34 +0000 (UTC) Message-ID: <5660AC82.6090606@abelian.org> Date: Thu, 03 Dec 2015 20:56:34 +0000 From: Paul Nicholson User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <56605433.5000109@abelian.org> <8D2FC2110D0C6EC-830-1C1D72@webmail-vm107.sysops.aol.com> In-Reply-To: <8D2FC2110D0C6EC-830-1C1D72@webmail-vm107.sysops.aol.com> X-Scan-Signature: 5c335215f1b3de26d890ee84d49616ce Subject: Re: LF: Decode EbNaut and thrash a PC Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 5530 vtmatch passes all its tests now. The next release of vlfrx-tools isn't ready yet but the latest vtmatch is at http://abelian.org/vlf/tmp/vtmatch.c which you can just drop into the build directory and do a make install. I played around with vtmatch on last night's VO1NA messages and noticed some significant correlation spikes at 08:30 09:00 and 09:30 but they failed to decode. Joe wrote: > I'll try a longer message 39 characters, shorter symbols > 0.5s and 8K19A starting 2000 UT. Longer messages enable us to use longer lists in the decoder without risk of false decodes. We get a bit more coding gain. VO1NA 2015-12-03/04 8K19A 0.5S 39C start Eb/N0 BER rank 20:00 11.6 3.8% 0 20:30 10.6 5.8% 0 -- Paul Nicholson --