The WTRCT8-806-870-0.2-1.2-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 806 to 870 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.6 dB, Rejection 30 dB, Return Loss 14 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter, Tunable Filter. More details for WTRCT8-806-870-0.2-1.2-30 can be seen below.