The WBCTB10-1902.5-1910-1930-1937.5-40-5 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 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1902.5-1910-1930-1937.5-40-5 can be seen below.