The WBCGV10-841.5-852.5-862.5-873.5-80-1 from Wainwright Instruments is a Band Pass Filter with Frequency 852.5 to 862.5 MHz, Bandwidth 10 MHz, Center Frequency 857.5 MHz, Insertion Loss 2.5 to 3.5 dB, Rejection 80 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV10-841.5-852.5-862.5-873.5-80-1 can be seen below.