The WTRCT8-698-728-10-16-20 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 698 to 728 MHz, Bandwidth 10 MHz, Insertion Loss 0.6 dB, Rejection 20 dB, Return Loss 14 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter, Tunable Filter. More details for WTRCT8-698-728-10-16-20 can be seen below.