The WBCGV5-811.5-821.5-831.5-841.5-40-3 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 1.5 to 2 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV5-811.5-821.5-831.5-841.5-40-3 can be seen below.