The WBCGV12-1945-1955-1975-1985-50-1 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 3.5 to 4.5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1945-1955-1975-1985-50-1 can be seen below.