The WBCGV12-1947.5-1957.5-1972.5-1982.5-50-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.9575 to 1.9725 GHz, Bandwidth 15 MHz, Center Frequency 1.965 GHz, Insertion Loss 4.25 to 5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1947.5-1957.5-1972.5-1982.5-50-2 can be seen below.