X-GM-THRID: 1237168872806695230 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.78.172.1 with SMTP id u1cs344917hue; Wed, 23 May 2007 22:17:50 -0700 (PDT) Received: by 10.67.99.1 with SMTP id b1mr1888600ugm.1179983870037; Wed, 23 May 2007 22:17:50 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id a1si40260ugf.2007.05.23.22.17.41; Wed, 23 May 2007 22:17:50 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Hr5dh-0006KP-B4 for rs_out_1@blacksheep.org; Thu, 24 May 2007 06:13:29 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Hr5dg-0006KG-PK for rsgb_lf_group@blacksheep.org; Thu, 24 May 2007 06:13:28 +0100 Received: from smtp27.orange.fr ([80.12.242.96]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Hr5df-0005F0-Bn for rsgb_lf_group@blacksheep.org; Thu, 24 May 2007 06:13:28 +0100 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf2726.orange.fr (SMTP Server) with ESMTP id A40DF1C00081 for ; Thu, 24 May 2007 07:13:21 +0200 (CEST) Received: from JR (Mix-Dijon-114-1-194.w193-249.abo.wanadoo.fr [193.249.230.194]) by mwinf2726.orange.fr (SMTP Server) with ESMTP id D27911C00084 for ; Thu, 24 May 2007 07:13:16 +0200 (CEST) X-ME-UUID: 20070524051316862.D27911C00084@mwinf2726.orange.fr Message-ID: <200705240713150992.0CEEB0DD@smtp.wanadoo.fr> In-Reply-To: <005801c79cd8$53507800$0b01a8c0@server> References: <005801c79cd8$53507800$0b01a8c0@server> X-Mailer: Courier 3.50.00.09.1098 (http://www.rosecitysoftware.com) (P) Date: Thu, 24 May 2007 07:13:15 +0200 From: "John RABSON" To: rsgb_lf_group@blacksheep.org Mime-Version: 1.0 X-Spam-Score: -0.5 (/) X-Spam-Report: autolearn=disabled,AWL=-0.463 Subject: Re: LF: LMCW Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: 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 Status: O X-Status: X-Keywords: X-UID: 6751 I believe the term CW was originally coined to reflect the fact that you= had a continuous sine wave transmission when the key was down, whereas= with the previous technology (spark) you had a transmitted signal which= was more-or-less narrowband white noise. And it does anyone remember some low-power HF experiments with a= transmitter whose frequency was stabilised by putting the crystal= oscillator in the operator's armpit? 73 John F5VLF/G3PAI *********** REPLY SEPARATOR *********** On 23/05/2007 at 02:18 J. B. Weazle McCreath wrote: >LFers, > >I've always thought that the term CW was a misnomer, since it >isn't continuous in the strickest sense, being keyed on and off >in some specific pattern. Perhaps the CW setting of the mode >switch on rigs should be changed to PD, for primitive digital. > >73, J.B., VE3EAR - VE3WZL >Solar and wind powered >Lowfer " EAR" 188.830 >EN93dr > >http://www.hurontel.on.ca/~weazle > >P.S. - I am aware of how CW got its name.