The CB3000/80SK-E from G-WAY Microwave is a Band Pass Filter with Frequency 2960 to 3040 MHz, Bandwidth 80 MHz, Center Frequency 3000 MHz, Insertion Loss 1 to 1.2 dB, Rejection 50 to 60 dB. Tags: Module with Connectors, Cavity Filter. More details for CB3000/80SK-E can be seen below.