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 tAJJGnRu007758 for ; Thu, 19 Nov 2015 20:16:49 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZzUe4-0004U9-0n for rs_out_1@blacksheep.org; Thu, 19 Nov 2015 19:13:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZzUe3-0004Tw-Gu for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 19:13:23 +0000 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZzUd1-0000cA-T8 for rsgb_lf_group@blacksheep.org; Thu, 19 Nov 2015 19:13:22 +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 8CA013273A5 for ; Thu, 19 Nov 2015 19:03:23 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id E4C1328A023A for ; Thu, 19 Nov 2015 19:12:03 +0000 (UTC) Message-ID: <564E1F03.5080500@abelian.org> Date: Thu, 19 Nov 2015 19:12:03 +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: <8D2F10B9D429931-9B4-D3FF3@webmail-vm186.sysops.aol.com> <564E14C3.6050507@gmail.com> <564E195F.4080804@abelian.org> In-Reply-To: <564E195F.4080804@abelian.org> X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: Re: LF: EbNaut LF test from iz7slz 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: 5196 I'm looking at the 30 minute carrier and there's obviously a problem http://abelian.org/vlf/tmp/151119c.gif The main peak is off frequency and it's jumping around a lot. Could be a problem with my timing system. It's reporting a max error of around 40nS which is only a degree or two. I'll go check what MSF 60kHz and BBC 198 kHz look like. Best decode of the 18:00 messages was with timing offset +60 mS which gave Eb/N0 +2.1dB which is about 5dB worse than it should be given the carrier strength. -- Paul Nicholson --