The WBCTB10-1727.5-1735-1755-1762.5-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 1.735 to 1.755 GHz, Bandwidth 20 MHz, Center Frequency 1.745 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-1727.5-1735-1755-1762.5-40-1 can be seen below.