The WBCGV10-821.5-832.5-842.5-853.5-80-1 from Wainwright Instruments is a Band Pass Filter with Frequency 832.5 to 842.5 MHz, Bandwidth 10 MHz, Center Frequency 837.5 MHz, Insertion Loss 2.5 to 3.5 dB, Rejection 80 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV10-821.5-832.5-842.5-853.5-80-1 can be seen below.