The WBCGV5-1770-1850-1910-1990-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Center Frequency 1.88 GHz, Insertion Loss 0.75 to 1 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV5-1770-1850-1910-1990-40-2 can be seen below.