The WBCTB10-1844.9-1852.4-1872.4-1879.9-40 from Wainwright Instruments is a Band Pass Filter with Frequency 1.8524 to 1.8724 GHz, Bandwidth 20 MHz, Center Frequency 1.8624 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1844.9-1852.4-1872.4-1879.9-40 can be seen below.