Return-Path: Received: from rly-xa03.mx.aol.com (rly-xa03.mail.aol.com [172.20.64.39]) by air-xa01.mail.aol.com (v119.12) with ESMTP id MAILINXA13-5d4713df0d290; Mon, 15 Oct 2007 17:43:54 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-xa03.mx.aol.com (v119.12) with ESMTP id MAILRELAYINXA33-5d4713df0d290; Mon, 15 Oct 2007 17:43:43 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1IhXin-0005Jm-EZ for rs_out_1@blacksheep.org; Mon, 15 Oct 2007 22:43:33 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1IhXin-0005Jd-0i for rsgb_lf_group@blacksheep.org; Mon, 15 Oct 2007 22:43:33 +0100 Received: from sighthound.demon.co.uk ([80.177.174.126]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1IhXik-0007V4-4g for rsgb_lf_group@blacksheep.org; Mon, 15 Oct 2007 22:43:32 +0100 Received: from lurcher.twatt.local (lurcher.twatt.local [127.0.1.1]) by lurcher.twatt.local (Postfix) with ESMTP id B8301DA490 for ; Mon, 15 Oct 2007 22:43:23 +0100 (BST) Date: Mon, 15 Oct 2007 22:43:23 +0100 From: John Pumford-Green GM4SLV To: rsgb_lf_group@blacksheep.org Message-ID: <20071015224323.01994fc8@lurcher.twatt.local> In-Reply-To: <009201c80f73$941ca4e0$0e00000a@AGB> References: <002701c80f2d$c1087100$0964a8c0@gusham2mq8wmls> <001201c80f56$71513290$0e00000a@AGB> <005201c80f62$6caa4950$0e00000a@AGB> <00d501c80f66$65b794f0$63286a58@wgt01> <007e01c80f6a$e060f620$0e00000a@AGB> <011801c80f6d$0b4cbed0$63286a58@wgt01> <20071015220945.6ebeb20c@lurcher.twatt.local> <009201c80f73$941ca4e0$0e00000a@AGB> Organization: The Gammy Bird X-Mailer: Claws Mail 2.10.0 (GTK+ 2.12.0; i486-pc-linux-gnu) Mime-Version: 1.0 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,AWL=0.042,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Re: Olivia data test 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : On Mon, 15 Oct 2007 22:37:25 +0100 "Graham" wrote: > Thanks for that John, > > Thats quite usefull , looks to be better than the psk31 , how much > of the 'qsb' cycle is it printing ? > > As a rough guess , thats 2 mins of text , which I think is over the > qsb period -60/90 seconds ? , in which case the mode is quite > effective on this band , > only problem is , it transmitts tones in pairs and needs a linea > system . > > Tnx Hi Graham and the LF group, Yes I rather cheated by picking the best bit. It does get errors in the QSB dips, I can kick the decoder away again and see if I can quantify the period of good/bad copy. I believe MFSK16 would be okay for non-linear amps, as it's a single tone system. Cheers, Joh