The WBCDB3-432-451-454-473-50 from Wainwright Instruments is a Band Pass Filter with Frequency 451 to 454 MHz, Bandwidth 3 MHz, Center Frequency 452.5 MHz, Insertion Loss 0.5 to 0.6 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB3-432-451-454-473-50 can be seen below.