Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS,SUBJ_ALL_CAPS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v48NUiVj030793 for ; Tue, 9 May 2017 01:30:45 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d7rzy-00039U-Fc for rs_out_1@blacksheep.org; Tue, 09 May 2017 00:23:26 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d7rzx-00039L-Nt for rsgb_lf_group@blacksheep.org; Tue, 09 May 2017 00:23:25 +0100 Received: from simone.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1d7pRA-000239-Hs for rsgb_lf_group@blacksheep.org; Mon, 08 May 2017 21:39:22 +0100 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by simone.ucs.mun.ca (8.13.8/8.13.8) with ESMTP id v48KdHuZ011719 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 8 May 2017 18:09:17 -0230 Date: Mon, 8 May 2017 18:09:17 -0230 (NDT) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: Message-ID: References: <15be6ff3416-71b7-20de5@webprd-a30.mail.aol.com> <3f469a46-15c4-97a9-f571-785c13e9ee70@abelian.org> <02e701d2c7d9$b05ea8f0$111bfad0$@comcast.net> MIME-Version: 1.0 X-Scan-Signature: d7fcd9b75df8d1b09ddef9df028bd9ae Subject: Re: LF: NA VLF Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed 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: RO X-Status: X-Keywords: X-UID: 11639 Thank-you Paul. Your RX setup and processing are fantastic. 2.6 electrons on an e probe - that delights me! EbNaut and 100 uW are the next goals. 73 Joe On Mon, 8 May 2017, Paul Nicholson wrote: > > Watson-Watt calculation from the antenna amplitudes and phases > of the overnight signal gives 244 degrees which is reasonable > given the background noise from the south west (pulling the > apparent bearing southwards from the great circle 280 deg). > > Without any calculation, I can see from the relative antenna > phases that the signal is from the west: the E/W H-field is > very obviously inverted (relative to the E-field) from its > familiar polarity on European signals. > > Joe wrote: > >> The carrier was generated with an undisciplined 10 MHz DOCXO >> clocking an ad9851. As Markus points out, the maths puts it >> high by 92.5 uHz. > > Overnight signal peaks at 8270.0070625 Hz +/- 0.5 uHz. > Therefore about 3.6 ppb low of the DDS nominal frequency of > 8270.0070925... > > If I align the FT bins with that frequency, the overnight > signal becomes a sharp line - > > http://abelian.org/vlf/tmp/170508e.gif > > with a respectable S/N of 13.9 dB in 46.296 uHz. > > I'm now confident that this little peak in the spectrum > is 10uW from VO1NA. Distance is 3545 km. > > The signal amounts to about 2.6 electrons on the E-field probe. > How's that for a signal report Joe? > > Also getting a bit of a signal visible at Forest, Virginia. > Not a very significant peak but it has the same offset. > Only visible on the overnight signal, nothing yet on the > daytime. Distance to Forest is 2442 km so that's very good > for a land path. > > http://abelian.org/vlf/tmp/170508d.gif > > Forest is E-field only so no rejection of the South American > nighttime sferics. > > -- > Paul Nicholson > -- > >