Return-Path: <majordom@post.thorcom.com> Received: (qmail 15385 invoked from network); 27 May 2001 12:54:14 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 27 May 2001 12:54:14 -0000 Received: (qmail 23693 invoked from network); 27 May 2001 12:53:42 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 27 May 2001 12:53:42 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 153zyv-0006ne-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 27 May 2001 13:49:17 +0100 Received: from mta03-svc.ntlworld.com ([62.253.162.43]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 153zyu-0006nZ-00 for rsgb_lf_group@blacksheep.org; Sun, 27 May 2001 13:49:16 +0100 Received: from compaq ([62.253.48.116]) by mta03-svc.ntlworld.com (InterMail vM.4.01.02.27 201-229-119-110) with SMTP id <20010527124841.XOPV283.mta03-svc.ntlworld.com@compaq> for <rsgb_lf_group@blacksheep.org>; Sun, 27 May 2001 13:48:41 +0100 Message-ID: <00f501c0e6ab$5b64c260$682cfd3e@compaq> From: "Tracey Gardner" <tracey.gardner@ntlworld.com> To: rsgb_lf_group@blacksheep.org Subject: LF: Unid non-LORAN transmission at 100 kHz ? Date: Sun, 27 May 2001 13:48:40 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: <majordom@post.thorcom.com> Is anybody on the list hearing this signal or has Trond as he suspects got a local problem? 73s Tracey -----Original Message----- From: Trond Jacobsen <trond.jacobsen@halden.net> Date: 27 May 2001 13:37 Subject: Unid non-LORAN transmission at 100 kHz ? >At the moment is there a strong unid signal just below 100 kHz. When first detected it could be best described as a very slow FSK signal mark frequency 99.8 kHz / frequency shift 475 Hz ), after a short break this changed to steady, but reduced, carrier at the space frequency, - with non-regular spaced pulses of carrier at the mark frequency. This later signal show after first examination some similarity to the earlier reported unid pulses at 115.2 kHz. The pulses at 99.8 kHz has both an audible and visible 100 Hz overtone, > >These signals at 99.8 kHz are absolutely not part of the ordinary LORAN splatter. Recordings and spectrograms of both types of signals, ( FSK look-alike and pulses ) available on request. > >Anyone else out there who receives this ? Or have I got myself a very anoying local source of industrial generated QRM ? > >best regards > >Trond at ALFLAB, Halden in Norway