The WBCTB3-778-781-785-788-20 from Wainwright Instruments is a Band Pass Filter with Frequency 781 to 785 MHz, Bandwidth 4 MHz, Center Frequency 783 MHz, Insertion Loss 1.25 to 2 dB, Rejection 20 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB3-778-781-785-788-20 can be seen below.