The CB1865/8.75SK-B4 from G-WAY Microwave is a Band Pass Filter with Frequency 1860 to 1869.4 MHz, Bandwidth 9.4 MHz, Center Frequency 1864.7 MHz, Insertion Loss 1.6 dB, Rejection 22 to 50 dB. Tags: Module with Connectors, Cavity Filter. More details for CB1865/8.75SK-B4 can be seen below.