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: INFN-TO: mailn 1233; 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 uB3HnQsm001910 for ; Sat, 3 Dec 2016 18:49:27 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cDENy-0007aX-Mq for rs_out_1@blacksheep.org; Sat, 03 Dec 2016 17:46:06 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cDENy-0007aO-6g for rsgb_lf_group@blacksheep.org; Sat, 03 Dec 2016 17:46:06 +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 1cDENv-0000j7-P3 for rsgb_lf_group@blacksheep.org; Sat, 03 Dec 2016 17:46:05 +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=Lg6w4hzRgkIfNar1LEwARpGvIs8bjEdoK1U+4rFAR7g=; b=LAEe9ZOsJcIqK2yZfK3bnOW0jk YhDz2I/kjAhlktHZ461vUVSGEdHq5Uq+TJQxFXuYgEwpnB5LzZcDrd2dKO0zovb5yZcQDoZ+b8jD9 V15+tcIGFVRX544qrL7UEX+PoXxrL6Ipgnr4CBTe2As5FdiYKlVlHl1nvKv/Fg6E22EI=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:53683 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 1cDENv-0002lz-FA for rsgb_lf_group@blacksheep.org; Sat, 03 Dec 2016 17:46:03 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id D4FA34006BC for ; Sat, 3 Dec 2016 17:46:02 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <154c32c4dba-373a-24653@webprd-m58.mail.aol.com> <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> <583F1D7C.5020808@abelian.org> <583F3393.7050207@posteo.de> <5842F39F.5000006@abelian.org> <5842FEE3.8000102@posteo.de> From: Paul Nicholson Message-ID: <584304DA.2010505@abelian.org> Date: Sat, 3 Dec 2016 17:46:02 +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: <5842FEE3.8000102@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: 086f3faad0220c9ae57a7913e711a86d 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: 9672 > There have been 4 sunny days now. Maybe your transmitter works better on sunny days? I was able to get a decode from just the last four days: Day Eb/N0 Phase S/N in 2.5kHz 161130 -7.2 133.6 -61.8 161201 -6.6 154.3 -61.2 161202 -7.0 172.4 -61.7 161203 -3.7 151.2 -58.3 decoded with Eb/N0 = -0.2 dB at list rank 969420. No other permutation of 3 to 10 days produces a decode. > Now i have my local feedback channel again and can > do a local EbNaut experiment with 1 second symbols > on 6470 Hz. Yes to test the phase switching, compare the carrier S/N after decoding a message, with the carrier S/N after decoding unmodulated carrier at the same code settings. > The plan is to run 100 mA on 2970 Hz for the first time, I'll look for it but I don't expect to see anything. But, it is no effort to look and we might be lucky with some freak conditions. -- Paul Nicholson --