Return-Path: Received: (qmail 22817 invoked from network); 27 Nov 2004 09:58:10 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore01.plus.net with SMTP; 27 Nov 2004 09:58:10 -0000 Received: from mailnull by ptb-spamcore01.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CXzdq-000IYX-GU for dave@picks.force9.co.uk; Sat, 27 Nov 2004 10:17:22 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CXzdq-000IYU-Dw for dave@picks.force9.co.uk; Sat, 27 Nov 2004 10:17:22 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1CXzLF-000IiB-Uu for dave@picks.force9.co.uk; Sat, 27 Nov 2004 09:58:10 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CXzKb-0008IG-SO for rs_out_1@blacksheep.org; Sat, 27 Nov 2004 09:57:29 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CXzKb-0008I7-Hi for rsgb_lf_group@blacksheep.org; Sat, 27 Nov 2004 09:57:29 +0000 Received: from mailhost.ntl.com ([212.250.162.8] helo=mta08-winn.mailhost.ntl.com) by relay.thorcom.net with esmtp (Exim 4.41) id 1CXzKY-00072l-7K for rsgb_lf_group@blacksheep.org; Sat, 27 Nov 2004 09:57:29 +0000 Received: from aamta05-winn.mailhost.ntl.com ([212.250.162.8]) by mta08-winn.mailhost.ntl.com with ESMTP id <20041127095720.MFJR14040.mta08-winn.mailhost.ntl.com@aamta05-winn.mailhost.ntl.com> for ; Sat, 27 Nov 2004 09:57:20 +0000 Received: from mikedennison ([80.4.116.83]) by aamta05-winn.mailhost.ntl.com with ESMTP id <20041127095720.VQTO1092.aamta05-winn.mailhost.ntl.com@mikedennison> for ; Sat, 27 Nov 2004 09:57:20 +0000 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Sat, 27 Nov 2004 09:57:13 -0000 MIME-Version: 1.0 Message-ID: <41A84F79.6694.4C56BF@localhost> X-mailer: Pegasus Mail for Windows (v4.12a) Content-description: Mail message body X-SPF-Result: relay.thorcom.net: domain of ntlworld.com designates 212.250.162.8 as permitted sender X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=no,RCVD_IN_SORBS=0.1 Subject: LF: Linear modes Content-type: text/plain; charset=US-ASCII; format=flowed Content-transfer-encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) My question about linear amplifiers sparked some useful dialogue about eliminating the need for linears. If a new data mode is to be developed, it seems to me that two modes are needed. One for 'local' working in a CW bandwidth for those who do not wish to learn CW. The other in a much narrower bandwidth - the limiting factor being Loran lines - for intercontinental working. If these could be variants of the same mode, so much the better. Mike, G3XDV http://lf.apersonalguide.co.uk