> I like your idea of controlling a bandpass filter with the pic.  This
> sounds like a really good method to do what I want.
>
> Yours,
> --
> Derrick Early

A similar system was developed at my former university for undergrad
signal processing labs.  They used a MAXIM clock tunable switched cap
filter to sweep the band to display the spectrum of the signals in the
labs.  I never got a chance to use it but from what I hear I am glad.
Apparently (for reasons unknown to me) the performance was very slow and
it would take seconds for the unit (plugged into a PC port not sure which)
to perform a sweep.

Kalle
--
Kalle Pihlajasaari          kalle@data.co.za