The WBCTB10-1865-1872.5-1892.5-1900-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.8725 to 1.8925 GHz, Bandwidth 20 MHz, Center Frequency 1.8825 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1865-1872.5-1892.5-1900-40-2 can be seen below.