The CB1845/80HK-B7 from G-WAY Microwave is a Band Pass Filter with Frequency 1805 to 1885 MHz, Bandwidth 80 MHz, Center Frequency 1845 MHz, Insertion Loss 1 dB, Rejection 10 to 90 dB. Tags: Module with Connectors, Cavity Filter. More details for CB1845/80HK-B7 can be seen below.