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Re: LF: Re: Article on forward error correction

To: <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: Re: Article on forward error correction
From: "Alan Melia" <alan.melia@btinternet.com>
Date: Mon, 26 Dec 2016 18:47:16 -0000
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References: <5860C842.90809@abelian.org> <50D999B1045A4675874D265DAC4457A6@gnat> <58615E97.20703@abelian.org>
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Hi Paul, I'm no "expert" :-)) I have a sort of "executive level" understanding of some of the terms picked but by playing with digits (well, RTTY onwards) since 1970, my maths is well beyond it sell-by date so an exposition like that is very useful, though I do have a "feeling" for convolution and correlation, probability and FFTs.etc.
I do note that Andy (the datacomms columnist for Radcom)  has posted the 
link to the RSGBtech forum/yahoo group.
Thanks again
Alan
G3NYK

----- Original Message ----- From: "Paul Nicholson" <vlf0403@abelian.org>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, December 26, 2016 6:16 PM
Subject: Re: LF: Re: Article on forward error correction


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
--


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