The WBCGV12-1730-1740-1755-1765-50-2 from Wainwright Instruments is a Band Pass Filter with Frequency 1.74 to 1.755 GHz, Bandwidth 15 MHz, Center Frequency 1.7475 GHz, Insertion Loss 4.25 to 5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1730-1740-1755-1765-50-2 can be seen below.