The WBCTB10-1825-1832.5-1852.5-1860-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.8325 to 1.8525 GHz, Bandwidth 20 MHz, Center Frequency 1.8425 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1825-1832.5-1852.5-1860-40-2 can be seen below.