> Z jakeho softu generujete ty obrazky? To je nejake navrhovatko filtru? > To me by moooc libilo :-)) Neni to sice to co pouzil Balu, nicmene takova docela sikovna utilitka na navrhovani zakladnich filtru je Microchip FilterLab. http://ww1.microchip.com/downloads/en/DeviceDoc/fb20.zip Lukas Grepl