The WBCGV12-1900-1910-1930-1940-50-1 from Wainwright Instruments is a Band Pass Filter with Frequency 1.91 to 1.93 GHz, Bandwidth 20 MHz, Center Frequency 1.92 GHz, Insertion Loss 3.5 to 4.5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1900-1910-1930-1940-50-1 can be seen below.