The WBCTB10-1730-1737.5-1757.5-1765-40-3 from Wainwright Instruments is a Band Pass Filter with Frequency 1.7375 to 1.7575 GHz, Bandwidth 20 MHz, Center Frequency 1.7475 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1730-1737.5-1757.5-1765-40-3 can be seen below.