The WRCGV8-781-791-821-831-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 791 to 821 MHz, Bandwidth 30 MHz, Insertion Loss 0.75 dB, Rejection 30 dB, Return Loss 14 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for WRCGV8-781-791-821-831-30 can be seen below.