The WRCT8-837.5-842.5-847.5-852.5-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 842.5 to 847.5 MHz, Bandwidth 5 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 80 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-837.5-842.5-847.5-852.5-80 can be seen below.