The WBCGV10-1837.5-1850-1910-1922.5-40-1 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 1.25 to 2.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV10-1837.5-1850-1910-1922.5-40-1 can be seen below.