The WRCT8-854-856.5-861.5-864-50-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 856.5 to 861.5 MHz, Bandwidth 5 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-854-856.5-861.5-864-50-2 can be seen below.