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 vBAKWjKV022434 for ; Sun, 10 Dec 2017 21:32:46 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eO8Cb-00050o-CR for rs_out_1@blacksheep.org; Sun, 10 Dec 2017 20:27:57 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eO8Ca-00050f-QP for rsgb_lf_group@blacksheep.org; Sun, 10 Dec 2017 20:27:56 +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 1eO8CY-0000dB-47 for rsgb_lf_group@blacksheep.org; Sun, 10 Dec 2017 20:27:55 +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:References:Cc:To:From: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=vaZiX++yrG8F9s5TSxIkIxFhD/h9JacIaYezHvP+AxQ=; b=bHuvAliVUFgGj0I7Z9S406DKFr xfMdFCb2EcRZoOvbKwLy4Z2a4kYA82QepkM6spAmEY7/L8sJPXmRGJR9paro4hKW8GzH5vpQOL4u9 owy0XehRxE1YLHCuhRHqqby0vuYNlPDCcu0+ZQvViqUJ+mSdR9AY0qoBdUtJ2BWfJOUA=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:60710 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 1eO8CX-0006OL-MU; Sun, 10 Dec 2017 20:27:53 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 25161400496; Sun, 10 Dec 2017 20:27:52 +0000 (UTC) From: Paul Nicholson To: rsgb_lf_group@blacksheep.org Cc: Michael Smith References: <2dbcd2a8-0109-41e4-c0ca-aada17f54de8@abelian.org> <22021d49-300e-bfc3-2c2b-a7bef27981ae@abelian.org> Message-ID: Date: Sun, 10 Dec 2017 20:27:52 +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: <22021d49-300e-bfc3-2c2b-a7bef27981ae@abelian.org> 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: Mike Smith wrote: > Paul, > The battery swap is done. This is quite unexpected, > and very exciting. > Mike Good timing with that. Now Stefan is going to repeat a 3 character message each night, with exactly repeating timing and phase. This allows the signals to be added, to accumulate enough S/N for a decode of the message. Stacking - a bit like the technique astronomers use for images, except that this is coherent. [...] 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: 2e2f7cbbe9f38dd7bf3fac4fc012e6fc Subject: Re: VLF: Transatlantic success 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 Mike Smith wrote: > Paul, > The battery swap is done. This is quite unexpected, > and very exciting. > Mike Good timing with that. Now Stefan is going to repeat a 3 character message each night, with exactly repeating timing and phase. This allows the signals to be added, to accumulate enough S/N for a decode of the message. Stacking - a bit like the technique astronomers use for images, except that this is coherent. We have to hope that the propagation at 17470 Hz allows the rxed phase to repeat well enough. Don't worry about the odd timing break, vtcat -p takes care of those quite nicely. Good luck, and if you see a high load average on your vlf02 PC, you know it's doing some useful work! -- Paul Nicholson --