The WRCT16-850.5-851.5-856.5-857.5-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 851.5 to 856.5 MHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-850.5-851.5-856.5-857.5-40-2 can be seen below.