Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; Body=3 Fuz1=3 Fuz2=3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id uBTB5qkD032071 for ; Thu, 29 Dec 2016 12:05:53 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cMYTa-0002qj-HP for rs_out_1@blacksheep.org; Thu, 29 Dec 2016 11:02:26 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cMYTa-0002qa-1D for rsgb_lf_group@blacksheep.org; Thu, 29 Dec 2016 11:02:26 +0000 Received: from mailfe01.swip.net ([212.247.154.1] helo=swip.net) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1cMYTX-0007zR-IC for rsgb_lf_group@blacksheep.org; Thu, 29 Dec 2016 11:02:24 +0000 X-T2-Spam-Status: No, hits=0.8 required=5.0 tests=BAYES_50 Received: from [81.224.109.193] (account cxu-dcw-tyr@tele2.se HELO [192.168.1.2]) by mailfe01.swip.net (CommuniGate Pro SMTP 5.4.4) with ESMTPSA id 668716061 for rsgb_lf_group@blacksheep.org; Thu, 29 Dec 2016 12:02:21 +0100 To: rsgb_lf_group@blacksheep.org References: <5860C842.90809@abelian.org> <50D999B1045A4675874D265DAC4457A6@gnat> <58615E97.20703@abelian.org> From: Johan Bodin Message-ID: <35168c4f-7c6f-5a6e-a254-8eab2b7a9aa2@tele2.se> Date: Thu, 29 Dec 2016 12:02:21 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <58615E97.20703@abelian.org> X-Scan-Signature: 64437c466041e93ffedda7fb96b22b71 Subject: Re: LF: Re: Article on forward error correction Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit 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 2.75 Status: O X-Status: X-Keywords: X-UID: 9986 Thanks Paul, your article is the best introduction to FEC coding that I have ever seen! It quickly gives an intuitive feeling for how and why it works. 73 de Johan SM6LKM Den 2016-12-26 kl. 19:16, skrev Paul Nicholson: > > Thanks for the generous words and I'm relieved that none > of the resident experts have spotted any ghastly errors. > > I hope I've dispelled some of the mystery but retained all > the magic. It remains no less fascinating to see a message > decode from deep under the noise, perhaps more so when > knowing how it works. > > Alan wrote: > > > It probably deserves wider circulation > > I haven't posted it anywhere else, please share the link if > you think others will benefit. This mailing list is my only > contact with amateur radio - I'm not sure where else to post. > > Added links to the random codebooks I've been using. For those > who enjoy programming, it's fun and quite easy to make up a > simple program to simulate the baseband comms. > > (I did that myself a couple of years ago - a little program to > help me learn about FEC... it evolved into EbNaut). > > -- > Paul Nicholson > -- > >