The 19759 from Microwave Filter Company is a Band Pass Filter with a passband from 3.4 to 4.2 GHz. It has a rejection of 24 dB (@ 3.35 and 4.25 GHz) and a passband loss of less than 0.3 dB. This filter measures 10.02 x 3.88 x 2.75 inches and is available with CPR229G/CPR229F flanges. Ideal for use in high-density transmit paths, this filter provides excellent rejection for bands such as maritime radio navigation, radar, wireless services (point-multipoint), X-band, maritime & aeronautical radio navigation.