Return-Path: X-Spam-DCC: paranoid 104; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, NO_REAL_NAME autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id tB2L4q1R005048 for ; Wed, 2 Dec 2015 22:04:52 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1a4EWl-0002dC-Ox for rs_out_1@blacksheep.org; Wed, 02 Dec 2015 21:01:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1a4EWl-0002d2-G4 for rsgb_lf_group@blacksheep.org; Wed, 02 Dec 2015 21:01:27 +0000 Received: from nina.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.86) (envelope-from ) id 1a4EVh-0000Dk-BQ for rsgb_lf_group@blacksheep.org; Wed, 02 Dec 2015 21:01:26 +0000 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by nina.ucs.mun.ca (8.13.1/8.13.1) with ESMTP id tB2L03wB021513 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 2 Dec 2015 17:30:04 -0330 Date: Wed, 2 Dec 2015 17:30:03 -0330 (NST) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: <565F09BB.6090709@abelian.org> Message-ID: References: <8D2FA5F73070DF3-164C-1B0DC6@webmail-vm091.sysops.aol.com> <8D2FB0E41DBD77B-1DC0-A28C5@webmail-vd012.sysops.aol.com> <565F09BB.6090709@abelian.org> MIME-Version: 1.0 X-Scan-Signature: 61577e2058c0d3bf1737d7de6ed6eb16 Subject: Re: LF: More EbNaut 137.777 - Dec. 1/2 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 5502 Hi Paul, That's very helpful. The oscillator needs some work to improve our chances. In the mean time, how about a longer message, more power and shorter symbols. 9K19A 1 Second symbols 25 characters 500 watts. 2100 UTC. 73 Joe On Wed, 2 Dec 2015, Paul Nicholson wrote: > > Given a 3 hour VO/VK window, > > > http://abelian.org/ebnaut/calc.php?sndb=15&snbws=92e-6&code=16K21&sp=10&L=1&nc=5&submit=1 > > shows you need to reach 15dB S/N in 92uHz to get a 5 char message > across, and > > > http://abelian.org/ebnaut/calc.php?sndb=12.5&snbws=92e-6&code=16K21&sp=12.5&L=1&nc=3&submit=1 > > 12.5dB for a 3 char message. > > This assumes the path remains stable for 3 hours which is probably > optimistic. > > A 2 char message with 14 second symbols needs S/N 11dB in 92uHz. > > Everything hinges on that carrier measurement. > > Markus wrote: > >> Fewer and weaker decodes than the night before: > > Here it was better than the previous night, > > VO1NA 2015-12-01/02 8K19A 2S 5C > > start Eb/N0 BER rank > > 19:00 1.0 35.2% 684 > 20:00 3.4 30.7% 0 > 20:30 13.0 6.5% 0 > 21:00 10.4 12.9% 0 > 21:30 11.4 10.4% 0 > 22:00 9.2 16.2% 0 > 22:30 11.7 9.6% 0 > 23:00 14.0 4.3% 0 > 23:30 12.6 7.2% 0 > 00:00 6.5 23.6% 0 > 00:30 10.5 12.7% 0 > 01:00 0.2 36.3% 6893 > 01:30 8.3 18.8% 0 > 02:00 4.5 28.3% 0 > 02:30 -1.0 38.1% 47236 > 05:00 4.2 29.1% 0 > 05:30 11.0 11.3% 0 > 06:00 4.5 28.3% 0 > 07:00 7.2 21.7% 0 > 08:00 7.2 21.7% 0 > 08:30 6.3 24.0% 0 > 09:00 0.2 36.3% 84968 > > -- > Paul Nicholson > -- > >