Return-Path: Received: (qmail 29649 invoked from network); 12 May 2000 23:32:03 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by bells.core.plus.net.uk with SMTP; 12 May 2000 23:32:03 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12qOpo-0003dK-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 13 May 2000 00:27:08 +0100 Received: from tk1.ihug.co.nz ([203.29.160.13] helo=smtp1.ihug.co.nz) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12qOpl-0003dF-00 for rsgb_lf_group@blacksheep.org; Sat, 13 May 2000 00:27:06 +0100 Received: from tractorb (p55-max6.chc.ihug.co.nz [209.77.128.55]) by smtp1.ihug.co.nz (8.9.3/8.9.3/Debian/GNU) with SMTP id LAA26240 for ; Sat, 13 May 2000 11:26:35 +1200 Message-ID: <026b01bfbc65$c1a380a0$46804dd1@tractorb> From: "Dave Brown" To: rsgb_lf_group@blacksheep.org References: <4.1.20000512222342.009e2360@mailer.inrete.it> Subject: LF: Re: Commercial CW on LF Date: Sat, 13 May 2000 10:59:35 +1200 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 5.00.2615.200 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: > I'm curious to know the ERP of VTX3 ... anyone reading this in India ? > Well not from India.... According to very reliable info I have, but unfortunately dating from several years ago now, the VTX nominal tx power is +60 dBW. I have another figure of +57 dBW which I think may be claimed ERP but that seems a trifle optimistic!! I first came across VTX3 a year or two prior to the Gulf War and a period of several months monitoring showed the signal to be very reliable here in ZL- day/night variation is less than 3 dB but there are other unexplained larger variations in signal that seem to happen any time. Not listened to it regularly for some time now but it is typically sending idents or code groups. Used to have manual sending up occasionally (operator training perhaps?) and was only too obvious when that happened. It was very active during the Gulf War with all sorts of traffic including quite long morse text messages but all meaningless stuff to me. Lots of obviously hand sent stuff over that period as well! A useful VLF beacon overall and although we have the advantage of a mainly sea path here in VK/ZL, sounds like it gets up overland into Europe fairly well too. A pity it isn't a 50 baud packet digipeater, although even 50 baud is probably too wide/fast for the antenna system to handle. 73 Dave, ZL3FJ