Return-Path: X-Spam-DCC: paranoid 1170; 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 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 u18JdhDr024103 for ; Mon, 8 Feb 2016 20:39:43 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aSrap-0005p1-6A for rs_out_1@blacksheep.org; Mon, 08 Feb 2016 19:35:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aSrao-0005oo-3a for rsgb_lf_group@blacksheep.org; Mon, 08 Feb 2016 19:35:26 +0000 Received: from brian.netcom.co.uk ([217.72.171.64]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aSrZn-0005sg-CO for rsgb_lf_group@blacksheep.org; Mon, 08 Feb 2016 19:35:24 +0000 Received: from sb.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by brian.netcom.co.uk (Postfix) with ESMTP id DE693320084 for ; Mon, 8 Feb 2016 19:12:35 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id EDB9F28A0F67 for ; Mon, 8 Feb 2016 19:34:07 +0000 (UTC) Message-ID: <56B8EDAF.10802@abelian.org> Date: Mon, 08 Feb 2016 19:34:07 +0000 From: Paul Nicholson User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <8D32F748EB832C7-B70-6C02A6@webmail-vm074.sysops.aol.com> <8D32F9DF6C471A6-4BC-73475B@webmail-vm021.sysops.aol.com> In-Reply-To: <8D32F9DF6C471A6-4BC-73475B@webmail-vm021.sysops.aol.com> X-Scan-Signature: c1f72e5acb1277e013f90c915ad7ad68 Subject: Re: VLF: EbNaut 8270.1 Sunday Content-Type: text/plain; charset=ISO-8859-1; 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 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 6755 > Just started another sequence with same parameters, > running 04:00:02 to 5:25:22 UT. I must admit defeat on this one Markus. The signal is there but just a dB too weak to decode. The following carrier was 0.07 fT which is a decent signal but the noise was higher than the other day. Here I've been playing with ebsynth which is now at version 0.5 and has some improvements. It uses much less CPU and does the phase modulation using a sigmoid shaped slew. http://abelian.org/ebnaut/ebsynth.shtml I built a multiplier chain, 53077.777778 * 3 * 3 and have a nice 10V 477 kHz signal which is rock steady and the modulation clicks don't seem to spread. There was a gap in the rain on Sunday so I put up a 200 metre long wire. -- Paul Nicholson --