The WBCTB10-1942.5-1950-1970-1977.5-40-3 from Wainwright Instruments is a Band Pass Filter with Frequency 1.95 to 1.97 GHz, Bandwidth 20 MHz, Center Frequency 1.96 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1942.5-1950-1970-1977.5-40-3 can be seen below.