Brickwall Filters

Our ABW series is a true Brickwall Filter. The ABW series is the sharpest cutoff Video filter available anywhere. Tight control of the Amplitude, Phase and Delay Characteristics create a filter unmatched for sharpness, low ringing, insertion loss and cost. Typical NTSC applications use this filter to pass 4.20MHz and reject everything above 4.48MHz which requires a stopband ratio of 1.066.