Return-Path: X-Spam-DCC: paranoid 1102; Body=3 Fuz1=3 Fuz2=3 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 tB6NTptb028231 for ; Mon, 7 Dec 2015 00:29:51 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1a5ihW-0007T8-Te for rs_out_1@blacksheep.org; Sun, 06 Dec 2015 23:26:42 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1a5ihW-0007Sz-LV for rsgb_lf_group@blacksheep.org; Sun, 06 Dec 2015 23:26:42 +0000 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1a5igS-0002gt-Gx for rsgb_lf_group@blacksheep.org; Sun, 06 Dec 2015 23:26:41 +0000 Received: from sb.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by parrot.netcom.co.uk (Postfix) with ESMTP id F30A93273A5 for ; Sun, 6 Dec 2015 23:16:14 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id AF2E028A0191 for ; Sun, 6 Dec 2015 23:25:18 +0000 (UTC) Message-ID: <5664C3DE.3090104@abelian.org> Date: Sun, 06 Dec 2015 23:25:18 +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: <5662352D.6050609@abelian.org> <8D2FD5A5840B109-1CBC-D5B38@webmail-vd007.sysops.aol.com> <5662CC47.3030007@abelian.org> <5662FD4F.50104@abelian.org> <566305CF.4020407@abelian.org> <56631F93.7040505@abelian.org> <5663384D.9080401@abelian.org> <56636B7C.8000608@abelian.org> <5663E8A8.7090205@abelian.org> In-Reply-To: X-Scan-Signature: 1708620d3ce65bee0beaaede7929769a Subject: Re: LF: More EbNaut 137.777 - TA slot 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: 5631 It was a few hours before I got to the rx to retrieve the battery so it continued on an almost dead battery and recorded two more messages. VO1NA 2015-12-05/06 16K21A 5S 5C QRO start Eb/N0 Freq 13:30 13.0 -222 uHz 15:00 3.1 -256 uHz 16:30 3.9 -482 uHz 18:00 15.1 -558 uHz 19:30 17.3 -228 uHz 21:00 14.2 -330 uHz 22:30 18.7 -262 uHz 00:00 14.8 -253 uHz 01:30 17.0 -293 uHz 03:00 22.4 -41 uHz 04:30 20.8 -208 uHz 06:00 13.0 -216 uHz 07:30 17.0 -276 uHz 09:00 3.1 +20 uHz Partial reception at 10:30 gave enough to measure +3 uHz. I was able to measure the phase over the entire 21 hour recording in 5 minute averages: http://abelian.org/vlf/tmp/151206a.gif This looks to me like propagation, not drift of the tx oscillator. It's a pretty typical diurnal. I'm plotting phase measured at a frequency offset of -255 uHz. I think that Joe's oscillator is actually doing very well and we are seeing mostly the effect of propagation. The phase ends up nearly where it started and the total day/night change is about -1250 degrees or about -3.5 cycles. -- Paul Nicholson --