The WBCDB3-1940-1958.5-1961.5-1980-30-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.9585 to 1.9615 GHz, Bandwidth 3 MHz, Center Frequency 1.96 GHz, Insertion Loss 1.25 to 1.5 dB, Rejection 30 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB3-1940-1958.5-1961.5-1980-30-2 can be seen below.