Return-Path: X-Spam-DCC: paranoid 1480; 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=-0.5 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,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 u9CJdZsM023200 for ; Wed, 12 Oct 2016 21:39:35 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1buPJF-0006gA-Js for rs_out_1@blacksheep.org; Wed, 12 Oct 2016 20:35:25 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1buPJF-0006g1-7W for rsgb_lf_group@blacksheep.org; Wed, 12 Oct 2016 20:35:25 +0100 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 4.87) (envelope-from ) id 1buPJD-0001S9-QT for rsgb_lf_group@blacksheep.org; Wed, 12 Oct 2016 20:35:24 +0100 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=2p3RY69udIVvL45dNSVThByq6Kuu+rVbNRUq7ye5tMQ=; b=AnA6IVQnQZ/vc6fLJiHhUcPQ/w bMU/0o87YioMVg68Ybk/PxztIPkEWR504q89MwZK4Ft90Z9gWXqpkzFv6KiE6AfO2qrY+9H1c5lIx bMPNuVglbRJiJwsYmqblv06+NQSYot81Lf/yteGJEYo4IN8I03KF1ie/4LTS869r0WRE=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:50577 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1buPJC-0004Gp-Ru for rsgb_lf_group@blacksheep.org; Wed, 12 Oct 2016 20:35:22 +0100 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 33E83400446 for ; Wed, 12 Oct 2016 19:35:22 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <157b05f2e7d-a71-85cc@webprd-a60.mail.aol.com> <57FC02C5.10700@posteo.de> <57FCA0EC.3000804@abelian.org> <57FCE651.7020809@posteo.de> <57FE04F2.9090208@abelian.org> <57FE4A79.2010904@posteo.de> From: Paul Nicholson Message-ID: <57FE907A.6040200@abelian.org> Date: Wed, 12 Oct 2016 19:35:22 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 In-Reply-To: <57FE4A79.2010904@posteo.de> 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-Scan-Signature: e90dcb17768c7e768f13e0721cc1c0c7 Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz 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: 9052 > f = 6470.00000 Hz > Start time: 12.10.2016 14:30:00 UTC > Symbol length: 40 s > Characters: 3 > CRC 16 > Coding 8K19A No decode, just a false hit ' WV' at Eb/N0 = -0.7. Strange. According to carrier measurements this should be an easy decode at around +3db. More carrier measurements: night signal phase lags daytime by 60 degrees. Night amplitude is about 0.1 fT. The 16K25A 15 char 140 second message should decode at about Eb/N0 +6dB. So far no improvement on the partial decodes, next to try is correcting for that 60 deg diurnal. -- Paul Nicholson --