The WRCT8-871-875-885-889-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 875 to 885 MHz, Bandwidth 10 MHz, Insertion Loss 0.6 to 1 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-871-875-885-889-40-1 can be seen below.