Hi Folks:

I need to design an active high pass filter with a cut off of 1KHz.  Now I
know I could haul out the books and do this from the equations (I seem to
remember actually going through that exercise about 15 years ago), but I'm
hoping there is now a software solution.  Ideally I'd like to find
something just like Microchip's FilterLab, that could do the design and
graph the frequency response.   Unfortunately, FilterLab will currently
only do low pass filters (I know the other filters are coming, but
unfortunately I need to do this now).  Can anybody point me the direction
of some software (cheap or free.. I only need to do this very infrequently)
that might be able to help with this problem.

Thanks in advance!

John Hansen

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