KR Electronics part number 3157-1 is a 70 MHz bandpass filter. It has a min 0.5 dB bandwidth of 30 MHz. The filter is group delay and amplitude equalized. Stopband attenuation of 45 dB is maintained to 5 GHz. elliptic type response for quick transition to the. The filter is supplied in a 0.6” x 0.6” x 2.25” case with SMA connectors.Other frequencies and bandwidths are available. Data sheets are available at www.krfilters.com.