Return-Path: Received: (qmail 11156 invoked from network); 10 Aug 2001 19:52:02 -0000 Received: from unknown (HELO warrior-inbound.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 10 Aug 2001 19:52:02 -0000 Received: (qmail 1273 invoked from network); 10 Aug 2001 19:51:38 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 10 Aug 2001 19:51:38 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15VI8f-0000lC-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 10 Aug 2001 20:40:09 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from dargolad.esoterica.pt ([195.22.0.27]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15VI8b-0000l7-00 for rsgb_lf_group@blacksheep.org; Fri, 10 Aug 2001 20:40:05 +0100 Received: from srv17slx.esoterica.pt (srv17slx.esoterica.pt [195.22.0.47]) by dargolad.esoterica.pt (8.11.2/8.11.2) with ESMTP id f7AJdOG25820 for ; Fri, 10 Aug 2001 20:39:24 +0100 (WEST) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from slave2 (por049.esoterica.pt [195.22.5.49]) by srv17slx.esoterica.pt (8.9.3+Sun/8.9.3) with SMTP id UAA05781 for ; Fri, 10 Aug 2001 20:39:23 +0100 (WET DST) Message-ID: <3.0.5.32.20010810193907.008da6b0@pop3.esoterica.pt> X-Sender: brian@pop3.esoterica.pt X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Fri, 10 Aug 2001 19:39:07 +0000 To: rsgb_lf_group@blacksheep.org From: "Brian Rogerson" Subject: Re: LF: ZL DX testing 22 September In-reply-to: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Dear Bob and Group, Having listened to the band between 160 and 190KHz this evening at around 1900 utc I confirm AM stations audible on 162 French speaking, 171 Arabic? and 183 French speaking from this location. Spectrogram shows the overlap region 166 to 167+ as maybe possible also from below 176 to 178. 172 does not seem too bad in spite of the carrier on 171. Hope to listen again tomorrow morning. 73, Brian At 15:34 09/08/01 +0000, you wrote: >Dear Bob, LF Group > >As I think I mentioned a while back, there is a quiet-ish segment in >the LF broadcast band, some hundreds of Hz wide centred on >about 172.0kHz. The sidebands of the adjacent broadcast stations >leak into it if they are carrying high-pitched programme material, but >most of the time during darkness the noise floor seems to be QRN, >at my location at least. This certainly seemed to be the quietest >frequency in the 165 - 190kHz range. > >Are there any strong signals in roughly this part of the spectrum >emanating from the VK/ ZL region that we could try to receive here >in Europe, as CFH and DBF39, etc, have been used over the trans- >atlantic path? This would give some sort of handle on the signal >levels and optimum time of day for a ZL > Eu attempt. I guess this >would be easier to do in the other direction - the Eu LF broadcast >stations are not exactly low-power, and operate continuously, so >should be a relatively easy target for reception in ZL. > >Cheers, Jim Moritz >73 de M0BMU > > > 73 Brian CT1DRP IN51QD 41 09 58N 08 39 11W http://homepage.esoterica.pt/~brian