The CB2000/400MK-D5 from G-WAY Microwave is a Band Pass Filter with Frequency 1800 to 2200 MHz, Bandwidth 400 MHz, Center Frequency 2000 MHz, Insertion Loss 0.7 dB, Rejection 50 to 70 dB. Tags: Module with Connectors, Cavity Filter. More details for CB2000/400MK-D5 can be seen below.