The CB3500/200SK-B from G-WAY Microwave is a Band Pass Filter with Frequency 3400 to 3600 MHz, Bandwidth 200 MHz, Center Frequency 3500 MHz, Insertion Loss 0.4 to 0.5 dB, Rejection 40 to 55 dB. Tags: Module with Connectors, Cavity Filter. More details for CB3500/200SK-B can be seen below.