Return-Path: Received: (qmail 21911 invoked from network); 28 Nov 2004 14:34:36 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 28 Nov 2004 14:34:36 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CYQ9G-000PPi-Ug for dave@picks.force9.co.uk; Sun, 28 Nov 2004 14:35:36 +0000 Received: from [192.168.67.1] (helo=ptb-mxcore01.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CYQ9G-000PPa-Of for dave@picks.force9.co.uk; Sun, 28 Nov 2004 14:35:34 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1CYQ8I-0001LN-Hw for dave@picks.force9.co.uk; Sun, 28 Nov 2004 14:34:34 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CYQ82-0003ut-UF for rs_out_1@blacksheep.org; Sun, 28 Nov 2004 14:34:18 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CYQ82-0003uk-IV for rsgb_lf_group@blacksheep.org; Sun, 28 Nov 2004 14:34:18 +0000 Received: from msgdirector2.onetel.net.uk ([212.67.96.149] ident=mirapoint) by relay.thorcom.net with esmtp (Exim 4.41) id 1CYQ7z-0003Jz-CK for rsgb_lf_group@blacksheep.org; Sun, 28 Nov 2004 14:34:18 +0000 Received: from mail05.onetel.net.uk (mail05.onetel.net.uk [212.67.96.157]) by msgdirector2.onetel.net.uk (MOS 3.4.6-GR) with ESMTP id CCU70418; Sun, 28 Nov 2004 14:34:09 GMT Received: from mail05.onetel.net.uk (localhost.onetel.net.uk [127.0.0.1]) by mail05.onetel.net.uk (MOS 3.4.6-GR) with ESMTP id CDY76092; Sun, 28 Nov 2004 14:34:09 GMT Received: from 213.78.182.231 by mail05.onetel.net.uk (MOS 3.4.6-GR) with HTTP/1.1; Sun, 28 Nov 2004 14:34:09 GMT Date: Sun, 28 Nov 2004 14:34:09 GMT From: Brian G3YKB To: rsgb_lf_group@blacksheep.org X-Mailer: Webmail Mirapoint Direct 3.4.6-GR MIME-Version: 1.0 Message-Id: <6d7bf820.a65c1879.820dd00@mail05.onetel.net.uk> X-SPF-Result: relay.thorcom.net: 212.67.96.149 is neither permitted nor denied by domain of onetel.com X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=no, Subject: Re: 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) G3XDV writes: >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. As so few stations have linear power amplifiers, I wonder if "keyboard activity" (particularly for "local ragchews") could be encouraged by using an "old" mode such as fsk(rtty?) ? Many of us have the necessary software (some may still have the hardware!!). Brian G3YKB