The CB1880/60SK-B5 from G-WAY Microwave is a Band Pass Filter with Frequency 1850 to 1910 MHz, Bandwidth 60 MHz, Center Frequency 1880 MHz, Insertion Loss 0.8 dB, Rejection 50 to 75 dB. Tags: Module with Connectors, Cavity Filter. More details for CB1880/60SK-B5 can be seen below.