The WTRCT10-2110-2170-10-16-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.11 to 2.17 GHz, Bandwidth 10 MHz, Insertion Loss 1.25 dB, Rejection 30 dB, Return Loss 14 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter, Tunable Filter. More details for WTRCT10-2110-2170-10-16-30 can be seen below.