The WBCGV10-810.5-821.5-831.5-842.5-80-2 from Wainwright Instruments is a Band Pass Filter with Frequency 821.5 to 831.5 MHz, Bandwidth 10 MHz, Center Frequency 826.5 MHz, Insertion Loss 2.5 to 3.5 dB, Rejection 80 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV10-810.5-821.5-831.5-842.5-80-2 can be seen below.