The WBCGV10-820.5-831.5-841.5-852.5-80-2 from Wainwright Instruments is a Band Pass Filter with Frequency 831.5 to 841.5 MHz, Bandwidth 10 MHz, Center Frequency 836.5 MHz, Insertion Loss 2.5 to 3.5 dB, Rejection 80 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV10-820.5-831.5-841.5-852.5-80-2 can be seen below.