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Re: Soundcard Decoder for UO-11?



I. too, would like to see the article in question. 73 Steve
On Thu, 18 Nov 1999 22:33:47 -0600 Peter Jordahl <k5gm@prismnet.com>
writes:
>Yes, I would like to see it available.  It sounds very instructive, in 
>
>terms of techniques, not necessarily in terms of actual hardware to be 
>used 
>today.
>
>-----Original Message-----
>From:	Laura Halliday [SMTP:lha@sdr.utias.utoronto.ca]
>Sent:	Thursday, November 18, 1999 10:50 AM
>To:	amsat-bb@AMSAT.Org
>Subject:	Re: [amsat-bb] Soundcard Decoder for UO-11?
>
>At 05:41 PM 17/11/99 -0500, John Magliacane wrote about an old article
>by G3RUH:
>
>>This is an EXCELLENT article!  I built a slightly updated version of 
>this
>>demodulator UO-9 and UO-11 decoding, and found that it performed 
>better in
>>the presence of noise than a homebrew PLL (XR2211-based) demodulator 
>I
>>had been using.  The description of this article helped me greatly to
>>understand correlation decoding, and to eventually design PSK and FSK
>>modems that I now use for AO-16 and KO-25 communications.
>
>Assuming the copyright issues could be sorted, do people perceive 
>value
>in reprinting this article somewhere? It's awfully good, and probably 
>more
>accessible to an amateur audience than the equivalent treatment in a
>typical communications textbook.
>
>I remember reading about the then-new Kansas City cassette tape 
>standard
>in the I/O section of 73. Does that date me or what? :-)
>
>Laura Halliday VA3LDH   "Que les nuages soient notre pied
>Grid: FN03gs                a terre..." - Hospital/Shafte
>----
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>
>----
>Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
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