The WBCTB3-2277.5-2307.5-2312.5-2342.5-40 from Wainwright Instruments is a Band Pass Filter with Frequency 2.3075 to 2.3125 GHz, Bandwidth 5 MHz, Center Frequency 2.31 GHz, Insertion Loss 1.25 to 1.75 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB3-2277.5-2307.5-2312.5-2342.5-40 can be seen below.