The CB1960/60OK-B4 from G-WAY Microwave is a Band Pass Filter with Frequency 1930 to 1990 MHz, Bandwidth 60 MHz, Center Frequency 1960 MHz, Insertion Loss 1.2 to 2.6 dB, Rejection 30 to 40 dB. Tags: Module with Connectors, Cavity Filter. More details for CB1960/60OK-B4 can be seen below.