Return-Path: <owner-rsgb_lf_group@blacksheep.org> Received: from rly-mg09.mx.aol.com (rly-mg09.mail.aol.com [172.20.83.115]) by air-mg04.mail.aol.com (v121.4) with ESMTP id MAILINMG044-a2f47ea38b23ab; Wed, 26 Mar 2008 07:51:44 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mg09.mx.aol.com (v121.4) with ESMTP id MAILRELAYINMG091-a2f47ea38b23ab; Wed, 26 Mar 2008 07:51:23 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JeU8r-0004S5-Ph for rs_out_1@blacksheep.org; Wed, 26 Mar 2008 11:50:05 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JeU8q-0004Ru-Ug for rsgb_lf_group@blacksheep.org; Wed, 26 Mar 2008 11:50:05 +0000 Received: from wmsmtp.opaltelecom.net ([62.24.128.253] helo=smtp.talktalk.net) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from <g3kevmal@talktalk.net>) id 1JeU8k-0005Xb-5s for rsgb_lf_group@blacksheep.org; Wed, 26 Mar 2008 11:50:03 +0000 X-Path: TTSMTP Received: from unknown (HELO g3kev) ([89.242.135.5]) by smtp.talktalk.net with SMTP; 26 Mar 2008 11:49:50 +0000 Message-ID: <00a401c88f37$7f340cf0$0301a8c0@g3kev> From: "mal" <g3kevmal@talktalk.net> To: "rsgb" <rsgb_lf_group@blacksheep.org> Date: Wed, 26 Mar 2008 11:49:49 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: 0.4 (/) X-Spam-Report: autolearn=disabled,AWL=0.360 Subject: LF: 500 v 137 khz 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n Hi all My observations over this past year on 500 khz indicate that it is vy similar to 1800 khz ( 160m) for propagation, vy variable from one day to the next, daytime and night time variations and bad qsb at times, on the other hand 137 khz propagation seems more consistant especially around EU. Daytime and night time signals often are much the same.On the long haul N.America signals are generally only audible/visible during night time, but if one was running considerable more power perhaps these signals would be audible daytime as well. On LF power output is more important for consistant sighnals than the higher frequencies. I often get the same reports daytime fm EU on 137 as night time and vice versa, although the noise increases during the dark hours. 137 khz is mostly deserted these days. All the acty at present seems to be on Beacon mode on 500 khz. 73 de Mal/G3KEV