The WBCGV12-1990-2000-2020-2030-50-2 from Wainwright Instruments is a Band Pass Filter with Frequency 2 to 2.02 GHz, Bandwidth 20 MHz, Center Frequency 2.01 GHz, Insertion Loss 3.5 to 4.5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1990-2000-2020-2030-50-2 can be seen below.