Return-Path: Received: (qmail 13959 invoked from network); 27 Mar 2003 22:10:20 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 27 Mar 2003 22:10:20 -0000 Received: (qmail 21294 invoked from network); 27 Mar 2003 22:10:12 -0000 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 27 Mar 2003 22:10:12 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 18yfSm-0007xd-PH for rsgb_lf_group-outgoing@blacksheep.org; Thu, 27 Mar 2003 22:03:08 +0000 Received: from [195.130.225.154] (helo=mail.tiscali.it) by post.thorcom.com with esmtp (Exim 4.14) id 18yfSh-0007xU-Ul for rsgb_lf_group@blacksheep.org; Thu, 27 Mar 2003 22:03:04 +0000 Received: from orion.pii.net (62.10.4.180) by mail.tiscali.it (6.5.032) id 3E661F2E00CA2A2C for rsgb_lf_group@blacksheep.org; Thu, 27 Mar 2003 23:02:17 +0100 Received: (from clapo@localhost) by orion.pii.net (8.9.3/8.9.3) id XAA00705 for rsgb_lf_group@blacksheep.org; Thu, 27 Mar 2003 23:05:52 +0100 Message-ID: X-Mailer: XFMail 1.3 [p0] on Linux X-Priority: 3 MIME-Version: 1.0 In-reply-to: <5.1.0.14.0.20030327110712.00a9e3d8@gemini.herts.ac.uk> Date: Thu, 27 Mar 2003 23:05:52 +0100 (CET) From: "Claudio Pozzi" To: rsgb_lf_group@blacksheep.org Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: LF: Unusual QRN X-Spam-Status: No, hits=-19.5 required=5.0tests=EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT, REPLY_WITH_QUOTESversion=2.51 X-Spam-Checker-Version: SpamAssassin 2.51 (1.174.2.5-2003-03-20-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false HI all. On 27-Mar-03 James Moritz wrote: > Dear Markus, LF Group > > At 16:47 26/03/2003 -0500, you wrote: >>tonight the band seems to be plagued by a high level of background QRN. >>Not the usual distinct static crashes, but rather a continous static >>crackling reminiscent of old 78-rpm shellack records. This type of noise >>has been present during some nights, but not often. Its southerly angle of >>arrival went along well with the usual explanation of very distant >>lightning activity. > > I have noticed similar noise on the band here also during the past few days > - the background band noise seems to be ~10dB over the usual levels, > swamping the Loran chatter that normally sets the noise floor, but can > "switch" on and off over a period of a few minutes. It seems to occur > during both the day and night time. What about a frequency hopping spread spectrum (military) emission? 73 de Claudio, ik2pii ---------------------------------------------------------------------- Claudio Pozzi http://www.qsl.net/ik2pii happy Linux user E-Mail: Claudio Pozzi Date: 27-Mar-03 Time: 23:01:55 This message was sent by XFMail ----------------------------------------------------------------------