Return-Path: Received: from mtain-mb12.r1000.mx.aol.com (mtain-mb12.r1000.mx.aol.com [172.29.96.32]) by air-db01.mail.aol.com (v129.4) with ESMTP id MAILINDB011-85ed4d3dbf281e1; Mon, 24 Jan 2011 13:04:24 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb12.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0F37238000088; Mon, 24 Jan 2011 13:04:22 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PhQlE-0004Dc-DS for rs_out_1@blacksheep.org; Mon, 24 Jan 2011 18:03:28 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PhQlE-0004DT-0y for rsgb_lf_group@blacksheep.org; Mon, 24 Jan 2011 18:03:28 +0000 Received: from out1.ip08ir2.opaltelecom.net ([62.24.128.244]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PhQlA-0004sW-P6 for rsgb_lf_group@blacksheep.org; Mon, 24 Jan 2011 18:03:27 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtEGAGdNPU1cHY55/2dsb2JhbACIUo15jh1zu3GFUASOYA X-IronPort-AV: E=Sophos;i="4.60,370,1291593600"; d="scan'208";a="477674728" Received: from unknown (HELO xphd97xgq27nyf) ([92.29.142.121]) by out1.ip08ir2.opaltelecom.net with SMTP; 24 Jan 2011 18:03:18 +0000 Message-ID: <002401cbbbf0$f8728130$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <4D3D95AD.11858.18D895B1@jurgenb2.3sdesign.de> <50B0F2B8CF874EECA07A460AB35151F8@JimPC> Date: Mon, 24 Jan 2011 18:03:14 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: Re: What freq. list can you recommend Content-Type: text/plain; charset="iso-8859-1" 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-global-disposition: G x-aol-sid: 3039ac1d60204d3dbf260df8 X-AOL-IP: 195.171.43.25 Jim I find the majority of Grabbers are a poor guide to reception. I am able to see and work stations that are not visible on the majority of Grabbers around EU. and those that are visible are generally very weak except they are local to the Grabber. This applies mostly to 137 Khz, and fortunately since I work in QSO mode only and get direct reports I do not need Grabbers. Beacon mode operators are at a disadvantage. de G3KEV ----- Original Message ----- From: "James Moritz" To: Sent: Monday, January 24, 2011 5:48 PM Subject: LF: Re: What freq. list can you recommend > Dear Jurgen, LF Group, > > As well as the frequency listings mentioned, there are several on-line > "grabbers" showing spectrograms of VLF signals in near real-time. These are > very useful to see if other people are receiving the same signals as you > are, or if what you see is actually local QRM of various kinds. In DL for > example there is DF6NM's grabber page at > http://www.mydarc.de/df6nm/vlf/vlfgrabber.htm, and DK7FC's > http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html both > currently in regular use. In the UK, Paul Nicholson maintains plots of the > VLF spectrum at http://abelian.org/vlf/spectrum.shtml with an extended > frequency range from 0 - 85kHz. There is also live streaming audio from the > lower "natural radio" part of the spectrum from this site. > > Cheers, Jim Moritz > 73 de M0BMU > >