Return-Path: Received: from mtain-ma02.r1000.mx.aol.com (mtain-ma02.r1000.mx.aol.com [172.29.96.10]) by air-me05.mail.aol.com (v129.4) with ESMTP id MAILINME053-8bb24c0984a2166; Fri, 04 Jun 2010 18:56:34 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-ma02.r1000.mx.aol.com (Internet Inbound) with ESMTP id B35A838000095; Fri, 4 Jun 2010 18:56:32 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OKfn6-00005P-4G for rs_out_1@blacksheep.org; Fri, 04 Jun 2010 23:55:04 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OKfn5-00005G-OW for rsgb_lf_group@blacksheep.org; Fri, 04 Jun 2010 23:55:03 +0100 Received: from smtp821.mail.ird.yahoo.com ([217.146.188.236]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1OKfn3-0001bL-3K for rsgb_lf_group@blacksheep.org; Fri, 04 Jun 2010 23:55:03 +0100 Received: (qmail 85946 invoked from network); 4 Jun 2010 22:54:54 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=ttmhZqy3+3gtpMgkZhL0VADs1JXorLNQCKBmnk35qdNdxd74JnfkccqOm5LeucKgEs2tE+3OrQMAufQQ/YFAO6oLu1UBG5kvtK7p7LG/4wcnMhDHkANHd6mLKZ2jNVMGXK0wm0iFHXfWxwSGweUrawthG9XOL3vVswt3Yl7Hb/k= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1275692094; bh=e6rTOciZ+ERFSIwyPvDIUgR4n3rCh14Lr0wES2js74s=; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=yuzFuWRTcGs3oid7PX3bHhomR4Z6jOAUxceWE7WrhLuPIlAZfwL6FH4+Jdm9pVUVSysbDZw+hGt+NpiO3e3ypIaMkVrKg4PclYpmpd+8HstICChDOo0QEDNLIHt+Fr7iA2koRFAl8F0pciZYpta6saVx4olV0C8l10Cy9MVX9Xk= Received: from JimPC (james.moritz@86.180.24.201 with login) by smtp821.mail.ird.yahoo.com with SMTP; 04 Jun 2010 22:54:54 +0000 GMT X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- X-YMail-OSG: QwCKM0kVM1lfIT3pWv7anxj0KCHawsU7EpmOB7nJv76yo8nssmc5aM59.38JiFQBoza51PFPzT0lqnBIJedaTs7pcxix2gxKP.mpah5m1W2qNI5J99CsL.eVd2wCSFuQuwHYJ6TQqJ0.mN97Roz5j_f8zchov_XrUKRDVK3deRSEGIRRXx86O9PdIpVmXySrRJsQW1w.nkqbSvCJxRu3luFJS9sJs580FMnw.trbvdMO0hMC_a3uipr8n0Y- X-Yahoo-Newman-Property: ymail-3 Message-ID: <85A6EDF74C464FF09E93E97F768BA81F@JimPC> From: "James Moritz" To: References: <657E7065AC4C454AB63F6C7C2FF043F6@Black> In-Reply-To: <657E7065AC4C454AB63F6C7C2FF043F6@Black> Date: Fri, 4 Jun 2010 23:54:53 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18197 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,UNPARSEABLE_RELAY=0.001 Subject: LF: Re: Two-Way QSO on Dreamer's Band Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-AUTHENTICATION: mail_rly_antispam_dkim-d229.2 ; domain : btopenworld.com DKIM : fail x-aol-sid: 3039ac1d600a4c0984a02d43 X-AOL-IP: 193.82.116.20 Dear Markus, Walter, LF Group, Congratulations on the QSO - it is impressive to see that usable SNRs can be achieved in the far-field at 9kHz with quite small antennas and limited TX power. A long term objective at M0BMU for 9kHz is to do some field strength measurements using TX antennas on a similar scale. The main practical difficulty would seem to be the long time needed to integrate the signal at the receiver in order to obtain an adequate SNR for useful measurements (and to travel far enough to be out of the near field!) - I would be interested to know what SNR you would expect under "quiet" conditions using the same TX and RX parameters. Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: "Markus Vester" To: Sent: Friday, June 04, 2010 9:59 PM Subject: VLF: Two-Way QSO on Dreamer's Band Dear LF, this morning, June 4th between 6 and 8 UT, Walter (DJ2LF) and myself (DF6NM) were able to successfully conduct a two-way contact (aka "QSO") on 8.97 kHz.