The WBCGV4-821.5-851.5-866.5-896.5-30 from Wainwright Instruments is a Band Pass Filter with Frequency 851.5 to 866.5 MHz, Bandwidth 15 MHz, Center Frequency 859 MHz, Insertion Loss 0.65 to 0.75 dB, Rejection 30 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV4-821.5-851.5-866.5-896.5-30 can be seen below.