Return-Path: Received: from mtain-da08.r1000.mx.aol.com (mtain-da08.r1000.mx.aol.com [172.29.64.80]) by air-db04.mail.aol.com (v129.4) with ESMTP id MAILINDB044-86984bf43ff22fb; Wed, 19 May 2010 15:45:54 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-da08.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1FF8938000130; Wed, 19 May 2010 15:45:53 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OEpCC-0008Oj-Rp for rs_out_1@blacksheep.org; Wed, 19 May 2010 20:44:48 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OEpCC-0008Oa-FD for rsgb_lf_group@blacksheep.org; Wed, 19 May 2010 20:44:48 +0100 Received: from [85.37.17.108] (helo=smtp-out108.alice.it) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OEpC7-0006cG-OO for rsgb_lf_group@blacksheep.org; Wed, 19 May 2010 20:44:48 +0100 Received: from FBCMMO05.fbc.local ([192.168.184.136]) by smtp-out108.alice.it with Microsoft SMTPSVC(6.0.3790.3959); Wed, 19 May 2010 21:44:00 +0200 Received: from FBCMST18V01.fbc.local ([192.168.178.92]) by FBCMMO05.fbc.local with Microsoft SMTPSVC(6.0.3790.3959); Wed, 19 May 2010 21:44:00 +0200 MIME-Version: 1.0 X-MimeOLE: Produced By Microsoft Exchange V6.5 x-originating-ip: 151.99.187.181 Content-class: urn:content-classes:message Date: Wed, 19 May 2010 21:44:00 +0200 Message-ID: <8585FA1C733D9A42AEA98C724D8FB811C053A1@FBCMST18V01.fbc.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: <8585FA1C733D9A42AEA98C724D8FB811C053A1@FBCMST18V01.fbc.local> Thread-Topic: LF: Alpha dashes thread-index: Acr3icrkllvWZ3FdTwqMICNvrSzAAgAAHxOH References: <008f01caf784$779a11d0$0301a8c0@your91hoehfy9g> From: To: X-OriginalArrivalTime: 19 May 2010 19:44:00.0706 (UTC) FILETIME=[A0FEFA20:01CAF78B] X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,NO_REAL_NAME=0.55 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CAF78B.A09B5F1C" Subject: R: LF: Alpha dashes X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_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-VSS-INFO: 5400.1158/58776 X-AOL-VSS-CODE: clean x-aol-sid: 3039ac1d40504bf43ff1039c X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) ------_=_NextPart_001_01CAF78B.A09B5F1C Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I can receive the 11.90476 KHz alpha station (when it is up) with an accep= table S/N even indoor, using a modest 2-feet, 40-turns square untuned loop= and an easy-to-build pre-amplifier built around LT1028A. If it is of some interest, I can try to retrieve some screenshots showing= the alpha signal in comparison with some MSK stations between 18KHz and= 22KHz. Cheers D. ________________________________ Da: owner-rsgb_lf_group@blacksheep.org per conto di Jacek Lipkowski Inviato: mer 19/05/2010 21.11 A: rsgb Oggetto: Re: LF: Alpha dashes On Wed, 19 May 2010, mal hamilton wrote: > In plain english who can receive the alpha dashes and at what strength > around EU. unfortunately they are down now, so i can't tell you what is the s/n now. but it's hard not to receive these stations. with an e-field antenna (or with a h-field antenna but at some distance from powerlines) you can hear them without any downconversion, provided that your headphones (and ears :) have high enough frequency cutoff. with downconversion to 800Hz i would give it 599 if it were cw (actually they sometimes transmit a marker in cw) a much better test of antennas would be if people can receive SAQ with the key up (when it is not transmitting) - i don't know what the output power is, but lower than ALFA, probably a few kW. jacek ------_=_NextPart_001_01CAF78B.A09B5F1C 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