The WBCJV4-2301.75-2401.75-2481.75-2581.75-40 from Wainwright Instruments is a Band Pass Filter with Frequency 2.40175 to 2.48175 GHz, Bandwidth 80 MHz, Center Frequency 2.44175 GHz, Insertion Loss 0.8 to 1 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCJV4-2301.75-2401.75-2481.75-2581.75-40 can be seen below.