Dumitru Stama wrote:

> The problem is that there are a lot of things i cannot understand in the
> math posted there. Like how to generate the coefficients for Cebysev without
> Matlab since i don't own software like that
> Is there someone on this list who played with bandpass filters ?

There have been a number of discussions on this list about filters. Try a
search. Or google for "chebyshev filter" (note the spelling -- may be
important :).

This is a common filter type, and it should be easy to find normalized
coefficient tables.

Gerhard

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist