The WBCDB3-1862.5-1881-1884-1902.5-30 from Wainwright Instruments is a Band Pass Filter with Frequency 1.881 to 1.884 GHz, Bandwidth 3 MHz, Center Frequency 1.8825 GHz, Insertion Loss 1.25 to 1.5 dB, Rejection 30 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB3-1862.5-1881-1884-1902.5-30 can be seen below.