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 vB7L5SdV002697 for ; Thu, 7 Dec 2017 22:05:30 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eN3IE-00061p-Mq for rs_out_1@blacksheep.org; Thu, 07 Dec 2017 21:01:18 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eN3IE-00061f-Bw for rsgb_lf_group@blacksheep.org; Thu, 07 Dec 2017 21:01:18 +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 1eN3IB-0003qE-LZ for rsgb_lf_group@blacksheep.org; Thu, 07 Dec 2017 21:01:17 +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:Cc:References:To:Subject:Sender:Reply-To: 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=hlghLC7mv/jJkYyrYMIxjLh4LJxGqhl89mfxesRHsis=; b=9QnomvLzh3SGlUlrP3ycsHEge6 CnOMmvnlgk4PYjfw5m++46qC28szzqoC890+Eo2PbMGkDRdsjZHRuePjIKZebCjf8W3oHOtE7DgDo z9i9ncWK5wx0R9X75pz5TT6C8bkE3cyUEe+Igy0UIyigKhBaH/zAvHOU3anf6+SCL1u4=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:44562 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eN3IA-0006t2-64; Thu, 07 Dec 2017 21:01:14 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 9E48F400047; Thu, 7 Dec 2017 21:01:13 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <4d96a9d4-5f22-7650-872b-6344e9aea8e3@abelian.org> <5A19FF75.7080801@posteo.de> <5A1FFE7C.9050703@posteo.de> <5A226B0C.3080701@posteo.de> <579355A36AEE9D4FA555C45D556003AB9AAB0EB9@servigilant.vigilant.local> <5A25C304.3050607@posteo.de> <5A271218.9040803@posteo.de> <5A282BF9.4050409@posteo.de> <5A29193A.2090600@posteo.de> <5A29A373.6060406@posteo.de> Cc: Michael Smith From: Paul Nicholson Message-ID: Date: Thu, 7 Dec 2017 21:01:13 +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: <5A29A373.6060406@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: > Today i'd like to try that first east to west VLF TA > transmission. Let's try: > f = 17470.1000 Hz > Start time: 07.Dec.2017 22:00:00 UTC > Symbol period: 60 s > Characters: 1 > CRC bits: 6 > Coding 16K21A [...] 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: f62c7cf8eeb8e5a327b71719e9bffff1 Subject: Re: VLF: TA east to west? 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: > Today i'd like to try that first east to west VLF TA > transmission. Let's try: > f = 17470.1000 Hz > Start time: 07.Dec.2017 22:00:00 UTC > Symbol period: 60 s > Characters: 1 > CRC bits: 6 > Coding 16K21A That may decode in one attempt if lucky, but likely two transmissions will be needed. If it does decode, then the chance of it being the correct decode from random noise is 0.02 %. Can you run until 08:08 UT with CRC 12 and the other settings the same? A gain of 0.74 dB which will make a good difference. And if it decodes, the chance of a random correct decode is only 0.0004 %. I hope the weather doesn't spoil the transmission, but if you keep trying, you are sure to succeed. -- Paul Nicholson --