Return-Path: X-Spam-DCC: paranoid 1102; Body=3 Fuz1=3 Fuz2=3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,MANY_EXCLAMATIONS,PLING_QUERY,RATWARE_GECKO_BUILD, SPF_PASS 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 u33GCmt6016995 for ; Sun, 3 Apr 2016 18:12:48 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1amkaD-0004KC-5E for rs_out_1@blacksheep.org; Sun, 03 Apr 2016 17:09:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1amkaC-0004K3-TF for rsgb_lf_group@blacksheep.org; Sun, 03 Apr 2016 17:09:00 +0100 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1amkaB-0001kk-D6 for rsgb_lf_group@blacksheep.org; Sun, 03 Apr 2016 17:08:59 +0100 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 654313273E4 for ; Sun, 3 Apr 2016 17:08:23 +0100 (BST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id 0E22728A012C for ; Sun, 3 Apr 2016 16:08:58 +0000 (UTC) Message-ID: <5701401A.7060101@abelian.org> Date: Sun, 03 Apr 2016 16:08:58 +0000 From: Paul Nicholson User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Scan-Signature: 0a4643e586472c13187d293ec5d096c2 Subject: Re: AW: Re: VLF: 8270: now 8269.990Hz Sucess!?! - yes, also in Nuremberg 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7586 > new message starts 2016-04-03 08:00:00 The signal continues to improve! This one decoded here 'WX' with Eb/N0 = +10.7 dB > I prepared the EbNaut Sender for period 30 and chars 3 OK that takes an extra 2.5 dB, no problem here. I notice the .wav file start time of Stefan's decode of the 2016-04-02 07:30 message - the file starts at 2016-04-02 08:44:55.11 so therefore it misses the first 2095 seconds. (Stefan is using an offset of -2088 seconds, maybe that should be -2095). Due to all the missing samples, 53 symbols are lost which is why the BER was 42.9% (it counts erasures as errors) giving an unrealistic Eb/N0 of -2.9 dB. The carrier strength corresponded to Eb/N0 = 3.8 dB so with correct recording time it should have been an easy decode and would do 3 chars with 30 second symbols with a dB or so to spare. -- Paul Nicholson --