Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 87984380000AF; Sat, 3 Sep 2011 05:49:21 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Qzmpj-0002B6-SU for rs_out_1@blacksheep.org; Sat, 03 Sep 2011 10:48:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QzmpY-0001yF-Lk for rsgb_lf_group@blacksheep.org; Sat, 03 Sep 2011 10:48:04 +0100 Received: from lon1-post-1.mail.demon.net ([195.173.77.148]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from <gm4slv@sighthound.demon.co.uk>) id 1QzmpQ-00007O-Oz for rsgb_lf_group@blacksheep.org; Sat, 03 Sep 2011 10:48:01 +0100 Received: from sighthound.demon.co.uk ([80.177.174.126]) by lon1-post-1.mail.demon.net with esmtp (Exim 4.69) id 1QzmpQ-00050B-WX for rsgb_lf_group@blacksheep.org; Sat, 03 Sep 2011 09:47:56 +0000 Received: from svr1 (unknown [192.168.21.4]) by svr1.twatt.home (Postfix) with ESMTP id 822A31BF81 for <rsgb_lf_group@blacksheep.org>; Sat, 3 Sep 2011 09:47:55 +0000 (UTC) Date: Sat, 3 Sep 2011 09:47:55 +0000 From: John GM4SLV <gm4slv@sighthound.demon.co.uk> To: rsgb_lf_group@blacksheep.org Message-ID: <20110903094755.3b78fb08@svr1> In-Reply-To: <8343E1D319EE4CEFB7C9BD20AAF2BFFA@AGB> References: <alpine.WNT.2.00.1109021927550.976@opc1> <CAHAQVWO0ux32U1HfVED+RLEwSq0oxGWcz1h-c6j1PFbxV7e5Og@mail.gmail.com> <8343E1D319EE4CEFB7C9BD20AAF2BFFA@AGB> Organization: The Gammy Bird X-Mailer: Claws Mail 3.7.8 (GTK+ 2.24.4; i686-pc-linux-gnu) Mime-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: My thoughts on ROS Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:430438464:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60c94e61f8217b07 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none On Sat, 3 Sep 2011 00:32:54 +0100 "Graham" <g8fzk@g8fzk.fsnet.co.uk> wrote: > Roger, All > > ROS HF /MF / Multi access ./ How did we get here ? > Graham, LF Thanks for the informative write up of the history of ROS. You've obviously delved a lot further into the mode than the rest of us. For a one-man operation it's a remarkable achievement and I'll keep an eye on it's future developement. Perhaps I'm being hasty in announcing that I'll not use it again. Let me know when you're doing more tests with it and I'll see if I can persist! In the meantime I've set up a repeating MFSK-4 mode beacon, using "Fldigi" and it's running on 502.4 dial, with AF centre of 1kHz. It's full daylight now, so I don't suspect anything will be received. MFSK-4 uses some of the same techniques as ROS, but I don't know how different the performance will be on MF. Regards, John