The WBCTB10-1947.5-1955-1975-1982.5-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.955 to 1.975 GHz, Bandwidth 20 MHz, Center Frequency 1.965 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1947.5-1955-1975-1982.5-40-2 can be seen below.