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Date: Mon, 17 Jul 2006 18:09:29 +0200
From: Wolf DL4YHF <dl4yhf@freenet.de>
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Subject: Re: LF: Re: Re: DFCW on TS450
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Greetings all,


Murray wrote:
> Folks,
> I find it difficult to understand why one would want to generate DFCW 
> with up-down buttons, when there are plenty of ways to do it reliably 
> with audio.
>
> It would be quite trivial to write a BASIC program that generated 
> sound out the PC speaker, and of course sound card methods would be 
> straight-forward to one of the Windows programming experts. A few 
> years ago I wrote a DOS program which does this type of thing.
... or use SpecLab, which has a complete QRS / DFCW generator using the 
soundcard. Can be set to any symbol rate and audio frequencies you can 
think of (also very high frequency shifts, to compensate the 
divide-by-something hardware).

Regards,
  Wolf .