Return-Path: X-Spam-DCC: paranoid 1356; 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=-0.8 required=5.0 tests=BAYES_00,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 u3UJR9kZ008798 for ; Sat, 30 Apr 2016 21:27:09 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1awaSn-0005m7-JH for rs_out_1@blacksheep.org; Sat, 30 Apr 2016 20:22:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1awaSn-0005ly-0H for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2016 20:22:01 +0100 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1awaSl-00035C-Ef for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2016 20:21:59 +0100 Received: from pn.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by parrot.netcom.co.uk (Postfix) with ESMTP id 8F5573273E4 for ; Sat, 30 Apr 2016 20:20:45 +0100 (BST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 1F5224000D7 for ; Sat, 30 Apr 2016 19:21:58 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <57237FB9.2060507@posteo.de> <8D3705FBF0E442D-628-9A0506@webmail-vm001.sysops.aol.com> <5723C259.3090800@abelian.org> <5723C76E.70002@posteo.de> From: Paul Nicholson Message-ID: <572505D6.9050007@abelian.org> Date: Sat, 30 Apr 2016 19:21:58 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <5723C76E.70002@posteo.de> X-Scan-Signature: 7001055fa59a9c23b9831ea6d317a074 Subject: Re: VLF: EbNaut transmission on 8270.1 Hz again and again Content-Type: text/plain; charset=utf-8; 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: 7951 Stefan wrote: > Start: 29.04.2016 16:00:02 > Period: 40 > Length: 45 (!) I was impatient, with still 5549.6 seconds left to go I decoded the message easily, 'CQ CQ DREAMERS BAND DE DK7FC IN JN49IK PSE KK' Carrier S/N: 25.03 dB in 10.3 uHz Eb/N0 = 0.1dB with constant reference phase. I'll let the decoder go through a full phase search, it may find a better decode with a phase pattern that is closer to the diurnal. Later I'll decode the full transmission, we should get a better Eb/N0. That must be one of the longest messages decoded. Only needed 1.8 GByte RAM so within reach of home PCs. ... decoder has finished the phase search. No improvement on the 0.1dB so looks like LWPC is close to the mark with its phase prediction. -- Paul Nicholson --