The WBCJV4-2391.75-2436.75-2446.75-2491.75-40 from Wainwright Instruments is a Band Pass Filter with Frequency 2.43675 to 2.44675 GHz, Bandwidth 10 MHz, Center Frequency 2.44175 GHz, Insertion Loss 1.75 to 2 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCJV4-2391.75-2436.75-2446.75-2491.75-40 can be seen below.