The WTRCT10-1750-1780-5-12-60 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.75 to 1.78 GHz, Bandwidth 5 MHz, Insertion Loss 1.25 dB, Rejection 60 dB, Return Loss 14 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter, Tunable Filter. More details for WTRCT10-1750-1780-5-12-60 can be seen below.