Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w0J8WBZ0012336 for ; Fri, 19 Jan 2018 09:32:13 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ecS0A-0008NZ-2a for rs_out_1@blacksheep.org; Fri, 19 Jan 2018 08:26:18 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ecS09-0008NQ-4l for rsgb_lf_group@blacksheep.org; Fri, 19 Jan 2018 08:26:17 +0000 Received: from porthos.netcom.co.uk ([217.72.171.73]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1ecS06-0001JY-E3 for rsgb_lf_group@blacksheep.org; Fri, 19 Jan 2018 08:26:15 +0000 X-DKIM-Result: Domain=abelian.org Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=+U8xiGrR7oenCNuDTX1ANB8kMq1a2dEiCvZrOQLBuNA=; b=95NFw60tB6j5Bk91wLySkJzmvz iv/Pm8oHX0w9VC6GBQOQXcBGwBsivOpqdGPpw7pswfUUbVEU4lcldIqdJ0X3p86xABblgGBGILeZL 4m21KqBQZkqJ2uuMzLfIMOf7+xZrspkJ5FPl6Da2WeQqpMyf851J8BTkIg5comCTXc+M=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:39365 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1ecS04-0001nM-D1 for rsgb_lf_group@blacksheep.org; Fri, 19 Jan 2018 08:26:12 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id B0E7E400068 for ; Fri, 19 Jan 2018 08:26:11 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <5A5FCC85.8060108@posteo.de> <5A613D3D.5080902@posteo.de> From: Paul Nicholson Message-ID: Date: Fri, 19 Jan 2018 08:26:11 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <5A613D3D.5080902@posteo.de> Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - porthos.netcom.co.uk X-AntiAbuse: Original Domain - blacksheep.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - abelian.org X-Get-Message-Sender-Via: porthos.netcom.co.uk: authenticated_id: catchall@abelian.org X-Authenticated-Sender: porthos.netcom.co.uk: catchall@abelian.org X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stefan wrote: > f = 4470.100000 Hz > Start time: 18.JAN.2018 16:00:00 UTC > Symbol period: 60 s > Characters: 2 > CRC bits: 16 > Coding 16K23A (NEW) > Duration: 13h20min [hh:mm] > Antenna current: 300 mA [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: f38d515a9cad1e977fcfe251941a8120 Subject: Re: VLF: 300 mA on 4470 Hz, 67 km band Content-Type: text/plain; charset=utf-8; format=flowed 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=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 Stefan wrote: > f = 4470.100000 Hz > Start time: 18.JAN.2018 16:00:00 UTC > Symbol period: 60 s > Characters: 2 > CRC bits: 16 > Coding 16K23A (NEW) > Duration: 13h20min [hh:mm] > Antenna current: 300 mA > Unintentionally the message was sent with 30 second > symbols this night. Good copy in Todmorden. Based on last night's carrier, the signal calculated predicted Eb/N0 would be +3.5 dB, and I got a decode at +3.8 dB. A distance record for message decode at the 67km band. Bielefeld: Eb/N0 +13dB, *Decoded* Warsaw: Eb/N0 -10.7 dB; Cumiana: Eb/N0 +5.0 dB *Decoded* First message decode Germany to Italy at this band. A nice result for first use of 16K23A. Decoder needs 3.5 Gbyte RAM for this message size with optimum list length. -- Paul Nicholson --