From: "jannsen" <0482183881-0001@t-online.de>
To: rsgb_lf_group@blacksheep.org
References: <3BEFF641.19014.181C6C3@localhost>
Subject: Re: LF: Computer as DSP audio filter
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Date: Tue, 13 Nov 2001 01:01:24 +0100
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Mike Dennison schrieb:
> > I have been told there exists a computer program that not only presents
>  received
> > signals as a waterfall display but can also make one of the signals being
>  heard
> > as audio via the computer speakers. In that way the computer can act as a
>  DSP
> > audio filter, perhaps even for normal speed CW provided an appropriate
>  bandwidth
> > is selected. Anyone know more about this program?
> > 73, Dick, PA0SE
>
> Dick,
>
> You probably mean the latest version of Spectran which has all of the usual 
> waterfall stuff, plus a very easy to use CW filter. The frequency display 
> shows the incoming signal, and also the edges of the filter which can be 
> adjusted simply by left or right clicking the mouse. You can easily separate 
> the wanted and interfering signal this way.
>
> Download it from http://www.qsl.net/padan/spectran.html
>
>
>
>
> Mike, G3XDV (IO91VT)
> http://www.lf.thersgb.net
>
>
Hi Dick, hi Mike,

Spectran is ok if u are  contented with one filter.

I do use "SbFFT by KW5Q" when dxing on sw or looking for spurious. with SbFFT u 
can switch up to six individuel/independent filters. 

I don´t know any more where I did get that program. its amateur freeware
running on DOS level. windows or other Betriebssysteme should be off.

guess Ko/NL9222 knows where u can get the software. 

if not, let me know. I could compress it down to a 1,8MB ZIP and e-mail it 
direct.


regards
Uwe/dj8wx