Return-Path: Received: (qmail 7280 invoked from network); 29 Nov 2004 16:35:11 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore02.plus.net with SMTP; 29 Nov 2004 16:35:11 -0000 Received: from mailnull by ptb-spamcore01.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CYonQ-000Fjn-Jj for dave@picks.force9.co.uk; Mon, 29 Nov 2004 16:54:42 +0000 Received: from [192.168.67.1] (helo=ptb-mxcore01.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CYonQ-000Fjj-6z for dave@picks.force9.co.uk; Mon, 29 Nov 2004 16:54:40 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1CYoUV-000LlA-L3 for dave@picks.force9.co.uk; Mon, 29 Nov 2004 16:35:07 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CYoUG-0006Wl-Vo for rs_out_1@blacksheep.org; Mon, 29 Nov 2004 16:34:52 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CYoUG-0006Wb-J0 for rsgb_lf_group@blacksheep.org; Mon, 29 Nov 2004 16:34:52 +0000 Received: from h34.rdg.cp.net ([209.228.29.84] helo=n068.sc1.cp.net) by relay.thorcom.net with esmtp (Exim 4.41) id 1CYoU5-0007Gd-Jc for rsgb_lf_group@blacksheep.org; Mon, 29 Nov 2004 16:34:52 +0000 Received: from l8p8y6 (62.252.228.97) by n068.sc1.cp.net (7.0.030.2) id 419EA27C000AB0DA for rsgb_lf_group@blacksheep.org; Mon, 29 Nov 2004 16:34:35 +0000 Message-ID: <001601c4d614$a28a9e60$61e4fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org References: <6d7bf820.a65c1879.820dd00@mail05.onetel.net.uk> <000d01c4d55b$7bf4d680$045bfea9@d4f8d8> Date: Sun, 28 Nov 2004 13:05:05 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-SPF-Result: relay.thorcom.net: 209.228.29.84 is neither permitted nor denied by domain of virgin.net X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=no,RCVD_IN_SORBS=0.1 Subject: Re: LF: Linear modes Content-Type: text/plain; charset=iso-8859-1; 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) ----- Original Message ----- From: "Andy Talbot" To: Sent: Sunday, November 28, 2004 3:03 PM Subject: Re: LF: Linear modes > An LF 'RTTY type waveform' already exists - Jason ! 'Normal' RTTY, even > at the narrowest shift / baud rate for any of the standard software, would > be far to wide to be sociable on LF. Normal RTTY would not be acceptable on LF this has been discussed many times before. Everyone seems to be avoiding the obvious choice ie NORMAL CW. The 500 khz band if it becomes available to radio amateurs has traditionally been a CW band. I would suggest that those interested in LF should learn CW. This mode is more likely to attract new users on LF. Data modes are useful if there is a large volume of traffic to move between stations. The average radio amateur only exchanges Name, QTH, and QSA/QRK and CW is ideal for this purpose and no complicated modems are required. 73 de Mal/G3KEV > > Andy G4JNT > > > ----- Original Message ----- > From: "Brian G3YKB" > To: > Sent: Sunday, November 28, 2004 2:34 PM > Subject: Re: LF: Linear modes > > > > > > 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 > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Anti-Virus. > > Version: 7.0.289 / Virus Database: 265.4.3 - Release Date: 2004-11-26 > > > > > > > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.289 / Virus Database: 265.4.3 - Release Date: 2004-11-26 > >