Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 41EA338000085; Sun, 24 Feb 2013 18:30:40 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U9l0o-0003Tc-1U for rs_out_1@blacksheep.org; Sun, 24 Feb 2013 23:29:42 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U9l0n-0003TT-JF for rsgb_lf_group@blacksheep.org; Sun, 24 Feb 2013 23:29:41 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1U9l0k-0002TL-Nw for rsgb_lf_group@blacksheep.org; Sun, 24 Feb 2013 23:29:40 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id r1ONTMQ2010341 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 25 Feb 2013 00:29:22 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r1ONTM7l012500 for ; Mon, 25 Feb 2013 00:29:22 +0100 Message-ID: <512AA24D.2030104@iup.uni-heidelberg.de> Date: Mon, 25 Feb 2013 00:29:17 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= 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: <512A39D6.3050700@iup.uni-heidelberg.de> <512A99DF.1020407@iup.uni-heidelberg.de> <512A9EA0.2050504@psk31.plus.com> In-Reply-To: <512A9EA0.2050504@psk31.plus.com> X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id r1ONTMQ2010341 X-Spam-Score: -1.4 (-) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Eddie, LF, I just thought that the LF signal of this night will become much weaker. There was a layer of snow on the 2 hanging isolators which detuned the antenna, i.e. lowered the resonance peak or the antenna Q. The antenna current dropped to about 20% of the usual current. Probably most of it passed through the snow. But after rising the input voltage of the PA to maximum, it was possible to melt this layer of snow within about 4 minutes! :-) I saw the antenna current rising with some acceleration. The automatic variometer permanently re-tuned to the new resonance peak, indicated by the L+ LED :-) Then i saw some dropping rain drops on the ceramic part of the isolator where the highest field strength is to be expected. Fun! Would have been interesting to see the rising field strength on DF6NM's grabber :-) [...] Content analysis details: (-1.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: c6a8ca7629fac3d35507e5a7fd3cbf17 Subject: Re: LF: WSPR15 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable 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 x-aol-global-disposition: G x-aol-sid: 3039ac1d40d9512aa2a020dc X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Eddie, LF, I just thought that the LF signal of this night will become much weaker.=20 There was a layer of snow on the 2 hanging isolators which detuned the=20 antenna, i.e. lowered the resonance peak or the antenna Q. The antenna=20 current dropped to about 20% of the usual current. Probably most of it=20 passed through the snow. But after rising the input voltage of the PA to=20 maximum, it was possible to melt this layer of snow within about 4=20 minutes! :-) I saw the antenna current rising with some acceleration.=20 The automatic variometer permanently re-tuned to the new resonance peak,=20 indicated by the L+ LED :-) Then i saw some dropping rain drops on the=20 ceramic part of the isolator where the highest field strength is to be=20 expected. Fun! Would have been interesting to see the rising field strength on DF6NM's=20 grabber :-) 73, Stefan/DK7FC Am 25.02.2013 00:13, schrieb g3zjo: > That's nice, quite a potent looking signal on the waterfall there is=20 > nothing like seeing it. > > Eddie > > On 24/02/2013 22:53, Stefan Sch=E4fer wrote: >> Just discovered this link http://www.youtube.com/watch?v=3DWgL74SZD1Ng >> >> That is convincing. I go on in WSPR-15 on LF this night :-) >> >> 73, Stefan/DK7FC >> >> Am 24.02.2013 17:03, schrieb Stefan Sch=E4fer: >>> Hello Martin, LF, >>> >>> Thank you for the report and the image. The image is most=20 >>> interesting. I didn't expect that my signal is visible so well over=20 >>> so many sequences. But there was only one decode at 5:30 UTC. >>> >>> Here is a link to an image showing my results of last night,=20 >>> https://dl.dropbox.com/u/19882028/LF/WSPR_LF_24022013.png Thanks to=20 >>> the monitoring stations! >>> The LF DX season is not over yet! >>> >>> 73, Stefan/DK7FC >>> >>> >>> Am 24.02.2013 15:40, schrieb YV7MAE Maritn A. Echazarreta D.: >>>> >>>> Hi for All: >>>> >>>> WSPR 15 report in FK81BD >>>> >>>> 0345 -36 2.8 0.137616 0 WE2XEB FN12 30 >>>> >>>> 0415 -32 4.5 0.137616 0 WE2XEB FN12 30 >>>> >>>> 0445 -33 4.5 0.137616 0 WE2XEB FN12 30 >>>> >>>> 0515 -33 4.9 0.137616 0 WE2XEB FN12 30 >>>> >>>> 0530 -37 2.8 0.137610 0 DK7FC JN49 30 >>>> >>>> 0545 -34 6.3 0.137616 0 WE2XEB FN12 30 >>>> >>>> 73! >>>> >>>> Martin. >>>> >>>> YV7MAE >>>> >>>> >> >> >