The WBCGV12-1720-1730-1750-1760-50-1 from Wainwright Instruments is a Band Pass Filter with Frequency 1.73 to 1.75 GHz, Bandwidth 20 MHz, Center Frequency 1.74 GHz, Insertion Loss 3.5 to 4.5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1720-1730-1750-1760-50-1 can be seen below.