Return-Path: Received: from mtain-dj09.r1000.mx.aol.com (mtain-dj09.r1000.mail.aol.com [172.19.187.145]) by air-db08.mail.aol.com (v127_r1.1) with ESMTP id MAILINDB082-86224ba7fb6538c; Mon, 22 Mar 2010 19:21:09 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dj09.r1000.mx.aol.com (Internet Inbound) with ESMTP id A0FF33800009F; Mon, 22 Mar 2010 19:21:07 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ntquh-0007Nw-Qe for rs_out_1@blacksheep.org; Mon, 22 Mar 2010 23:20:03 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Ntquh-0007Nn-9p for rsgb_lf_group@blacksheep.org; Mon, 22 Mar 2010 23:20:03 +0000 Received: from lnx500.hrz.tu-darmstadt.de ([130.83.156.225]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Ntque-0001NI-U1 for rsgb_lf_group@blacksheep.org; Mon, 22 Mar 2010 23:20:03 +0000 Received: from FILE-SERVER-HST.hst.e-technik.tu-darmstadt.de (File-Server-HST.hst.e-technik.tu-darmstadt.de [130.83.212.129]) by lnx500.hrz.tu-darmstadt.de (8.14.2/8.14.2/HRZ/PMX) with SMTP id o2MNJvt4004552 for ; Tue, 23 Mar 2010 00:19:57 +0100 (envelope-from schaefer@hst.tu-darmstadt.de) Received: from [127.0.0.1] (helo=File-Server-HST.hst.e-technik.tu-darmstadt.de) by FILE-SERVER-HST.hst.e-technik.tu-darmstadt.de with AVK MailGateway; for ; Tue, 23 Mar 2010 00:19:59 +0100 Content-class: urn:content-classes:message MIME-Version: 1.0 X-MimeOLE: Produced By Microsoft Exchange V6.5 Date: Tue, 23 Mar 2010 00:19:59 +0100 Message-ID: <38A51B74B884D74083D7950AD0DD85E82A1B87@File-Server-HST.hst.e-technik.tu-darmstadt.de> X-MS-Has-Attach: X-MS-TNEF-Correlator: <38A51B74B884D74083D7950AD0DD85E82A1B87@File-Server-HST.hst.e-technik.tu-darmstadt.de> Thread-Topic: LF: Re: DK7FC's 3rd VLF transmission Thread-Index: AcrJ5QgHM0AfsHlJSxCksYFklBy1qQAL1wzc References: <2a2c8.24f60f40.38d54e4e@aol.com> <38A51B74B884D74083D7950AD0DD85E82A1B81@File-Server-HST.hst.e-technik.tu-darmstadt.de> <4BA5CFAA.2030007@freenet.de> <56800827A5644E1BB3F320CB51E2300E@Black> <26E279AD762E44FB937A8A7DF8F934BC@Black> <8C7F2923D86B4517B1C156BA499E96E4@Black> , <29746320.1346347.1269244849281.JavaMail.fmail@mwmweb078> <4BA7361F.1030702@abelian.org> <4BA7A586.8080307@abelian.org> From: =?iso-8859-1?Q?Stefan_Sch=E4fer?= To: X-AVK-Virus-Check: AVB 19.836;22.03.2010 X-PMX-TU: seen v0.99a by 5.5.9.388399, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2010.3.22.230632 X-PMX-SPAMCHECK: outgoing mail X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CACA16.30CAAB23" Subject: AW: LF: Re: DK7FC's 3rd VLF transmission 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-VSS-INFO: 5400.1158/56581 X-AOL-VSS-CODE: clean x-aol-sid: 3039cdbc9d0e4ba7fb634786 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) ------_=_NextPart_001_01CACA16.30CAAB23 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Paul, the TX power was up to 300W and the current arround 530...570 mA, so= an optimal ERP of abt 2mW. The wind was strong and the kite at a high ang= le for the most time! =20 Jim, M0BMU is the 2nd best DX distance! Jim, can you describe you RX detai= led, pse. Or have i forgotten an older mail? What was the new /p QTH? And= what are your observations about the change of QRM? =20 BTW: We could philosophize what is the definition for "DX" on LF and VLF!= Or is there a standard definition? In my ham licence i learned that on HF= , DX is outside the own continent and on VHF it is above 300km. So, what= is it for LF? And what for VLF (by hams)?=20 When we think about the effort and the average antenna systems available= we could call "DX" on VLF all that is beyond the near field, or say 10km,= that it sounds not too much unusual? What do you (all) think? =20 73, Stefan/DK7FC ________________________________ Von: owner-rsgb_lf_group@blacksheep.org im Auftrag von Paul Nicholson Gesendet: Mo 22.03.2010 18:14 An: rsgb_lf_group@blacksheep.org Betreff: Re: LF: Re: DK7FC's 3rd VLF transmission My best effort at a spectrogram, added to end of http://abelian.org/vlf/ss100321/ Produced after re-running the signal processing without clock correction. The spectrogram is normalised for uniform background. Unfortunately the message was not copied - the initial tune-up and first dash of the first K is lost because the background noise bearing is very close to the signal bearing. Here is the noise plot for the day, http://abelian.org/vlf/live/100321.9kHz.png Note the bearing of the noise between 12:00 and 13:00, and Frankfurt is on 116 deg! By 13:30 the noise had shifted far enough to copy the signal. Too bad the test was not the previous day, when noise was very low and North/South! Congratulations to Renato Romero IK1QFK for the longest distance clearly copied so far - 544km! Stefan - what was the kite height and current? -- Paul Nicholson -- ------_=_NextPart_001_01CACA16.30CAAB23 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 eJ8+IjwXAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEAKQAAAEFXOiBMRjogUmU6IERLN0ZD J3MgM3JkIFZMRiB0cmFuc21pc3Npb24AUwwBBYADAA4AAADaBwMAFwAAABMAOwACAEsBASCAAwAO AAAA2gcDABcAAAATADsAAgBLAQEJgAEAIQAAAEZGQkYzQzk3RDUyRDQyNEFCMkNBRjM4Rjk0Mjk4 RUQyAH4HAQOQBgDoFAAAOAAAAAMANgAAAAAAQAA5ACOryjAWysoBHgA9AAEAAAAFAAAAQVc6IAAA AAACAUcAAQAAADIAAABjPURFO2E9IDtwPUhTVDtsPUZJTEUtU0VSVkVSLUgtMTAwMzIyMjMxOTU5 Wi0yMDY2AAAAHgBJAAEAAAApAAAAUmU6IExGOiBSZTogREs3RkMncyAzcmQgVkxGIHRyYW5zbWlz c2lvbgAAAABAAE4AAMedK+PJygEeAFoAAQAAACMAAABvd25lci1yc2diX2xmX2dyb3VwQGJsYWNr c2hlZXAub3JnAAACAVsAAQAAAGMAAAAAAAAAgSsfpL6jEBmdbgDdAQ9UAgAAAABvd25lci1yc2di X2xmX2dyb3VwQGJsYWNrc2hlZXAub3JnAFNNVFAAb3duZXItcnNnYl9sZl9ncm91cEBibGFja3No 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