Return-Path: Received: from mtain-dh10.r1000.mx.aol.com (mtain-dh10.r1000.mx.aol.com [172.29.65.30]) by air-db02.mail.aol.com (v128.1) with ESMTP id MAILINDB023-86444bb9f7537d; Mon, 05 Apr 2010 10:44:35 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dh10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 2A23338000296; Mon, 5 Apr 2010 10:44:33 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NynWK-0001r1-3N for rs_out_1@blacksheep.org; Mon, 05 Apr 2010 15:43:20 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NynWJ-0001qs-NV for rsgb_lf_group@blacksheep.org; Mon, 05 Apr 2010 15:43:19 +0100 Received: from lnx500.hrz.tu-darmstadt.de ([130.83.156.225]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NynWH-0005AG-1S for rsgb_lf_group@blacksheep.org; Mon, 05 Apr 2010 15:43:19 +0100 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 o35EhFLb011765 for ; Mon, 5 Apr 2010 16:43:15 +0200 (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 ; Mon, 05 Apr 2010 16:43:15 +0200 Content-class: urn:content-classes:message MIME-Version: 1.0 X-MimeOLE: Produced By Microsoft Exchange V6.5 Date: Mon, 5 Apr 2010 16:40:04 +0200 Message-ID: <38A51B74B884D74083D7950AD0DD85E82A1BD7@File-Server-HST.hst.e-technik.tu-darmstadt.de> X-MS-Has-Attach: X-MS-TNEF-Correlator: <38A51B74B884D74083D7950AD0DD85E82A1BD7@File-Server-HST.hst.e-technik.tu-darmstadt.de> Thread-Topic: VLF: 4th VLF experiment by DK7FC/p Thread-Index: AcrUR5jbLYRnRKxTRA+NWYt6OqifTwAhkgbC References: <4BB8451B.1090207@freenet.de> <38A51B74B884D74083D7950AD0DD85E82A1BCD@File-Server-HST.hst.e-technik.tu-darmstadt.de> <38A51B74B884D74083D7950AD0DD85E82A1BD0@File-Server-HST.hst.e-technik.tu-darmstadt.de> <5510C66CEB9B46FDAB474C88A25031C5@JimPC> From: =?iso-8859-1?Q?Stefan_Sch=E4fer?= To: X-AVK-Virus-Check: AVB 19.865;05.04.2010 X-PMX-TU: seen v0.99a by 5.5.9.388399, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2010.4.5.143100 X-PMX-SPAMCHECK: outgoing mail X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CAD4CE.52D5EDB7" Subject: AW: VLF: 4th VLF experiment by DK7FC/p 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: 5400.1158/57088 X-AOL-VSS-CODE: clean x-aol-sid: 3039ac1d411e4bb9f7513277 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) ------_=_NextPart_001_01CAD4CE.52D5EDB7 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ________________________________ Von: owner-rsgb_lf_group@blacksheep.org im Auftrag von James Moritz >Well, the top image in the attachment shows a wide-band spectrum with and without filter. Basically, at this scale, everything around 9kHz and below is QRM... Tnx for that excellent overview! One can see the 2...3dB improvement. =20 I will also integrate a band pass filter in the E-field antenna for my pla= nned VLF grabber in Heidelberg! =20 73, Stefan/DK7FC ------_=_NextPart_001_01CAD4CE.52D5EDB7 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 eJ8+IhAOAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEAJwAAAEFXOiBWTEY6IDR0aCBWTEYg ZXhwZXJpbWVudCBieSBESzdGQy9wALYLAQWAAwAOAAAA2gcEAAUAEAAoAAQAAQAnAQEggAMADgAA ANoHBAAFABAAKwAPAAEANQEBCYABACEAAAA5QkJFQTYzRjI1QjczODQ0OTIxNEZFQTQzRjAzMTND QQA5BwEDkAYAtA0AADgAAAADADYAAAAAAEAAOQDPGvTgzdTKAR4APQABAAAABQAAAEFXOiAAAAAA AgFHAAEAAAAyAAAAYz1ERTthPSA7cD1IU1Q7bD1GSUxFLVNFUlZFUi1ILTEwMDQwNTE0NDMxNVot MjQ5MAAAAB4ASQABAAAAJwAAAFJlOiBWTEY6IDR0aCBWTEYgZXhwZXJpbWVudCBieSBESzdGQy9w AABAAE4AgP2G4UbUygEeAFoAAQAAACMAAABvd25lci1yc2diX2xmX2dyb3VwQGJsYWNrc2hlZXAu b3JnAAACAVsAAQAAAGMAAAAAAAAAgSsfpL6jEBmdbgDdAQ9UAgAAAABvd25lci1yc2diX2xmX2dy 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