Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 15599380000E3; Mon, 1 Aug 2011 10:30:49 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QntUg-0002C8-U6 for rs_out_1@blacksheep.org; Mon, 01 Aug 2011 15:29:22 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QntUg-0002Bz-5G for rsgb_lf_group@blacksheep.org; Mon, 01 Aug 2011 15:29:22 +0100 Received: from echidna.otenet.gr ([83.235.69.14]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QntUe-0001mI-KU for rsgb_lf_group@blacksheep.org; Mon, 01 Aug 2011 15:29:22 +0100 Received: from rosebud.otenet.gr (rosebud.otenet.gr [83.235.67.42]) by echidna.otenet.gr (ESMTP) with ESMTP for ; Mon, 1 Aug 2011 17:29:09 +0300 (EEST) Received: from [192.168.1.1] (ppp-94-66-157-65.home.otenet.gr [94.66.157.65]) (authenticated bits=0) by rosebud.otenet.gr (8.13.8/8.13.8/Debian-3) with ESMTP id p71ET70M014597 for ; Mon, 1 Aug 2011 17:29:11 +0300 Message-ID: <4E36B81C.7080507@otenet.gr> Date: Mon, 01 Aug 2011 17:28:44 +0300 From: Alex Deligiannis User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20110624 Thunderbird/5.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4E368591.40301@iup.uni-heidelberg.de> In-Reply-To: <4E368591.40301@iup.uni-heidelberg.de> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: VLF: strange transmissions Content-Type: text/plain; charset=UTF-8; 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-SCOLL-SCORE: 0:2:349787072:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40824e36b89914d1 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none On 1/8/2011 1:53 =CE=BC=CE=BC, Stefan Sch=C3=A4fer wrote: > VLF, > > There are strange transmissions near 12.4, 13.3 and 15.6 kHz, narrow=20 > band, very strong here in Heidelberg=20 > http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html=20 > and also in Iceland=20 > http://simnet.is/halldorgudmunds/TF3HZ_VLFgrabber/index.html, also=20 > very clear at http://www.ok2bvg.cz/vlfgrabber/ and others. > > Does anybody know what it is? Looks different to the often seen=20 > staircases during transmitter tests... > > Unfortunately many VLF grabbers are paused / OFF these times... > > 73, Stefan/DK7FC > > Must be local I can't see anything unusual and the noise is low at KM39gc