Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mailn.lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id uAUIkB60011499 for ; Wed, 30 Nov 2016 19:46:12 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cC9pZ-0000IV-5H for rs_out_1@blacksheep.org; Wed, 30 Nov 2016 18:42:09 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cC9pY-0000IM-OM for rsgb_lf_group@blacksheep.org; Wed, 30 Nov 2016 18:42:08 +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 4.87) (envelope-from ) id 1cC9pW-0004AD-9p for rsgb_lf_group@blacksheep.org; Wed, 30 Nov 2016 18:42:07 +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=luE7Ke/oRAiA+D4XpFZQjmUppoGop6P7cEeQ7B3EJ8M=; b=jMtnLReiPWB3txGHLSDb9Cwlus 9tbncpU7QcUhTrBR5nPXIXzO7/xKIxSFtTPDgIHprzDEhlvVNc/Mb2tT61QO5MDZpD4zv2pZ6isLE Lod8yXzbbHGdrQFQLAwyJlEH7nhaNKe7u4VJikx+4xft/CEUFDilrLV67G+j/9V+Z9ls=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:38003 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 1cC9pU-0003eU-SK for rsgb_lf_group@blacksheep.org; Wed, 30 Nov 2016 18:42:04 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 1B92F400008 for ; Wed, 30 Nov 2016 18:42:04 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <154c32c4dba-373a-24653@webprd-m58.mail.aol.com> <58260EC4.70903@abelian.org> <58261368.60901@posteo.de> <58261772.3050508@abelian.org> <5826BF91.6070907@abelian.org> <5826DB6E.1060000@abelian.org> <58276523.4000204@abelian.org> <5829D9E1.2020801@posteo.de> <582A0BF2.5070101@abelian.org> <582AB6CD.5090603@abelian.org> <582B12B2.7080708@posteo.de> <582B3823.8090504@abelian.org> <582B4466.5070106@abelian.org> <582B6E8B.4090207@posteo.de> <117DEE4AF4DD44F59CB 455664AD7695B@gnat> <046701d23fb3$ab36d900$01a48b00$@comcast.net> <582C19D6.5080808@abelian.org> <582CA9F0.2040306@abelian.org> <582DEE31.2090909@posteo.de> <582DF4E8.4090203@abelian.org> <582F3D04.80900@abelian.org> <582F6056.9060903@posteo.de> <582F7F08.6050608@abelian.org> <5830D07E.5050407@posteo.de> <58346350.6070705@abelian.org> <583494C7.1060701@posteo.de> <58349F7B.5010408@abelian.org> <583950E1.8090905@abelian.org> <583C61EF.50702@posteo.de> <583C673A.6040609@abelian.org> <583C799E.4090608@posteo.de> From: Paul Nicholson Message-ID: <583F1D7C.5020808@abelian.org> Date: Wed, 30 Nov 2016 18:42:04 +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: <583C799E.4090608@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: e09cca6d8e44a91eadbdfb3e1b8aec09 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 2.75 Status: O X-Status: X-Keywords: X-UID: 9629 > f = 6470.00000 Hz > Start time: 23.11.2016 08:00:00 UTC (Daily repetition) > Symbol length: 12 s > Characters: 40 > CRC 16 > Coding 8K19A Eight repeats and no sign of a decode. I expected six repeats would be enough. > A phase turn of 180 deg is done by varying the frequency > for a certain time > PSK_Regelzeit.png That would be significant I think. Perhaps it costs a dB or two. I've tried some small time offsets. Perhaps I can blank the symbol transition periods and just work with say 8 seconds of each symbol. Something to try tomorrow. -- Paul Nicholson --