Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id vB2EjCki012265 for ; Sat, 2 Dec 2017 15:45:15 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eL8xU-00031S-NB for rs_out_1@blacksheep.org; Sat, 02 Dec 2017 14:40:00 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eL8xU-00031E-70 for rsgb_lf_group@blacksheep.org; Sat, 02 Dec 2017 14:40:00 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eL8xQ-0001Jc-OE for rsgb_lf_group@blacksheep.org; Sat, 02 Dec 2017 14:39:58 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 789A820F19 for ; Sat, 2 Dec 2017 15:39:53 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1512225593; bh=xRYDPDKLqG0tSX6LeaMrd6CM2GA0Xb1TP8rDuP0XEDs=; h=Date:From:To:Subject:From; b=dF9KswxdPAJq06kTftDCx52KGBYBSH4L6dLMtc5CBA53R9Zc9Gnr3zJLJOeNlzygz 0Nxr3dPiO2AyatKjATjeaJKzOCuFtsGJ9rhLE/284RBZnut0XyWwt1qXu/3PmIiqv0 MCggwH2BmQWWXa/KP9IwPo+9HDtfdit23L7s8KjNkXlpbX8tCI3cZnwfJ1cMiY4nAV 7RNCV4JB8FPjZzvkFFZBFF9wpO/g5PN5KgQE64C9wOHOJ7vcHTmtcfOEMkzfoTG3rX sioq6a0mgnoXZqM1A1ex4hFmP40TDhN2mhFNUEzkubzCANrKQ301HJtBcZfg7VzcAz bF95eLv0qjzWA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3ypv1N6bPcz9rxH for ; Sat, 2 Dec 2017 15:39:52 +0100 (CET) Message-ID: <5A22BB38.8040605@posteo.de> Date: Sat, 02 Dec 2017 15:39:52 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Wow, very nice! Congrats to Dex for the nice signal. I hope to receive him here one day. Unfortunately we still suffer from permanent clouds and fog, so the tree is still not back yet :-/ 73, Stefan Am 02.12.2017 14:03, schrieb Paul Nicholson: > > Dex surprised me last night with a carrier on 8540 Hz, > GPS-locked and the ERP would be circa 100uW. > > Tx was stable from 21:25, detectable in the UK by 22:30, > and a good overnight signal until 03:00 when Dex planned to > switch off. > > http://abelian.org/vlf/tmp/171202a.gif > > Signal about 0.1fT and 30nV/m, about 30 electrons worth of > charge on the new E-field antenna. Anything with double > figures is a good amateur signal! > > H-field: -27.7 dB in 1Hz, phase -109.4 deg; > E-field: -26.0 dB in 1Hz, phase -108.1 deg; > > It's not unusual for the new E-field rx to do better than the > loop rx. Looks like I need to hurry up with the upgrade to > the H rx! I've cleared bench space for the replacement and > parts are on order. > > I measured the bearing using three different methods: > > Watson-Watt goniometry: 273.1 deg > > Poynting vector: 287.5 deg > > Tsuruda/Hayashi NPE: 282.3 deg > > The great circle bearing is actually 284.6 deg. > > NPE should be the most accurate method - no polarisation error > but relies on precise relative phase measurements between the > three channels. > > -- > Paul Nicholson > -- > > [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4b5b5ebe37a4c4f430f59bc35c1947b0 Subject: Re: LF: W4DEX at 8540 Hz in Todmorden Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 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 Wow, very nice! Congrats to Dex for the nice signal. I hope to receive him here one day. Unfortunately we still suffer from permanent clouds and fog, so the tree is still not back yet :-/ 73, Stefan Am 02.12.2017 14:03, schrieb Paul Nicholson: > > Dex surprised me last night with a carrier on 8540 Hz, > GPS-locked and the ERP would be circa 100uW. > > Tx was stable from 21:25, detectable in the UK by 22:30, > and a good overnight signal until 03:00 when Dex planned to > switch off. > > http://abelian.org/vlf/tmp/171202a.gif > > Signal about 0.1fT and 30nV/m, about 30 electrons worth of > charge on the new E-field antenna. Anything with double > figures is a good amateur signal! > > H-field: -27.7 dB in 1Hz, phase -109.4 deg; > E-field: -26.0 dB in 1Hz, phase -108.1 deg; > > It's not unusual for the new E-field rx to do better than the > loop rx. Looks like I need to hurry up with the upgrade to > the H rx! I've cleared bench space for the replacement and > parts are on order. > > I measured the bearing using three different methods: > > Watson-Watt goniometry: 273.1 deg > > Poynting vector: 287.5 deg > > Tsuruda/Hayashi NPE: 282.3 deg > > The great circle bearing is actually 284.6 deg. > > NPE should be the most accurate method - no polarisation error > but relies on precise relative phase measurements between the > three channels. > > -- > Paul Nicholson > -- > >