Return-Path: Received: (qmail 3320 invoked from network); 1 Jun 2001 10:57:47 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 1 Jun 2001 10:57:47 -0000 Received: (qmail 468 invoked from network); 1 Jun 2001 10:57:18 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 1 Jun 2001 10:57:18 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 155mU0-0005R6-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 01 Jun 2001 11:48:44 +0100 Received: from phobos.unica.co.uk ([208.239.240.147]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 155mTw-0005R1-00 for rsgb_lf_group@blacksheep.org; Fri, 01 Jun 2001 11:48:40 +0100 Received: from [194.73.73.111] (helo=gadolinium.btinternet.com) by phobos.unica.co.uk with esmtp (Exim 3.13 #2) id 155mTF-0000SX-00 for rsgb_lf_group@blacksheep.org; Fri, 01 Jun 2001 06:47:58 -0400 Received: from [213.1.102.114] (helo=default) by gadolinium.btinternet.com with smtp (Exim 3.03 #83) id 155mGe-0001le-00 for rsgb_lf_group@blacksheep.org; Fri, 01 Jun 2001 11:34:56 +0100 Message-ID: <000501c0ea86$81b1bc00$726601d5@default> From: "Alan Melia" To: "LF-Group" Subject: LF: 73.6kHz RTTY Date: Fri, 1 Jun 2001 11:34:04 +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: Hi John I think Rugby is equiped for ISB (Independent Sideband) so it can send two different data signals on the 'carrier' simultaneously. When only one sideband is in use the signal is fairly clean as far as we are concerned. At my location it doesnt seem to matter which SB is used. However when they are busy and both sidebands are carrying traffic I think there is an amount of intermod, which ,low though it may be, gives us a lot of problems as it spreads the noise and modulation components several hundred Hz either side. Cheers de Alan G3NYK Alan.Melia@btinternet.com