Return-Path: Received: from rly-dg08.mx.aol.com (rly-dg08.mail.aol.com [172.19.151.92]) by air-dg06.mail.aol.com (v121_r3.13) with ESMTP id MAILINDG064-5e248f5b93c134; Wed, 15 Oct 2008 05:35:02 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dg08.mx.aol.com (v121_r3.13) with ESMTP id MAILRELAYINDG081-5e248f5b93c134; Wed, 15 Oct 2008 05:34:56 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Kq2la-0007lZ-Be for rs_out_1@blacksheep.org; Wed, 15 Oct 2008 10:34:06 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Kq2la-0007lQ-0h for rsgb_lf_group@blacksheep.org; Wed, 15 Oct 2008 10:34:06 +0100 Received: from smtp-vbr11.xs4all.nl ([194.109.24.31]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Kq2lV-0003Ul-RD for rsgb_lf_group@blacksheep.org; Wed, 15 Oct 2008 10:34:05 +0100 Received: from organisa-c1c456 (ndb.demon.nl [82.161.81.65]) by smtp-vbr11.xs4all.nl (8.13.8/8.13.8) with ESMTP id m9F9XuKL082381 for ; Wed, 15 Oct 2008 11:33:56 +0200 (CEST) (envelope-from roelof@ndb.demon.nl) Date: Wed, 15 Oct 2008 09:33:49 -0000 To: rsgb_lf_group@blacksheep.org From: "Roelof Bakker" MIME-Version: 1.0 References: <740975046@web.de> Message-ID: In-Reply-To: <740975046@web.de> User-Agent: Opera Mail/9.51 (Win32) X-Virus-Scanned: by XS4ALL Virus Scanner X-Karma: -140: lashback.ubl=-140.0 X-Spam-Score: 2.0 (++) X-Spam-Report: autolearn=disabled,DNS_FROM_SECURITYSAGE=2.001 Subject: Re: LF: strong prop 505 kHz Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15 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=0.0 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: domain : post.thorcom.com ; SPF_helo = n X-AOL-SCOLL-AUTHENTICATION: domain : ndb.demon.nl ; SPF_822_from = n X-Mailer: Unknown (No Version) Hello Joerg, Like Rick wrote, this are non directional aeronautical beacons. A on-line data base can be found here: http://www.classaxe.com/dx/ndb/reu/ As the callsign for NDb's is not unique, you have to observe the frequency of the carrier. I hope this helps. 73, Roelof Bakker, pa0rdt