The WRCT8-849.035-850.385-851.615-852.965-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 850.385 to 851.615 MHz, Bandwidth 1.23 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-849.035-850.385-851.615-852.965-40 can be seen below.