The WBCTB10-1750-1757.5-1777.5-1785-40 from Wainwright Instruments is a Band Pass Filter with Frequency 1.7575 to 1.7775 GHz, Bandwidth 20 MHz, Center Frequency 1.7675 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1750-1757.5-1777.5-1785-40 can be seen below.