[RTTY] Soundcard and Serial ports

[BIll Duffy]

Thank you and Rick for sharing your knowledge. This has been a very 
informative exchange.
73
Bill
KA0VXK
----- Original Message ----- 
From: "Dave AA6YQ" <aa6yq at ambersoft.com>
To: <rtty at contesting.com>
Sent: Sunday, January 25, 2009 3:27 PM
Subject: Re: [RTTY] Soundcard and Serial ports


>>>>AA6YQ comments below
>
> -----Original Message-----
> From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com]On
> Behalf Of Rick Ruhl
> Sent: Sunday, January 25, 2009 3:48 PM
> To: rtty at contesting.com
> Subject: [RTTY] Soundcard and Serial ports
>
>>snip<
>
> The Soundcard was never designed to be a TU. The soundcard was designed to
> give GAMES better quality sound, so we wouldn't have to use the computer
> speaker.
>
>>>>That was certainly true of the original soundcards, and is true of some
> current soundcards. But with the integration of PCs into high-end audio
> systems, high-quality soundcards are available. Hams have put these to 
> good
> use in both digital mode operation and software-defined radios.
>
> The serial port was designed to go from DTE (Data Terminal Equipment) to a
> DCE (Data Communications Equipment), not to be used as a keying circuit.
>
>>>>True, but is there something about the serial port design that makes it
> inappropriate for use as a keying circuit?
>
>
> To get a true good RTTY TU, you need external hardware, like Joe was 
> talking
> about, but because hams found a way to make these work in a non-standard
> mode, then it's almost impossible for hardware people to do good, quality
> work and make a profit.  (It's the same with software people, some of us 
> try
> to make a living with software).
>
>>>>Either a product provides enough differential value to attract buyers
> over free alternatives, or it doesn't. Free software definitely raises the
> bar for commercial alternatives -- a good thing, IMHO.
>
>     73,
>
>         Dave, AA6YQ
>
> _______________________________________________
> RTTY mailing list
> RTTY at contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty


--------------------------------------------------------------------------------



Internal Virus Database is out of date.
Checked by AVG - http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.10/1903 - Release Date: 1/19/2009 
8:52 PM