The WTRCT10-2180-2480-10-20-40M from Wainwright Instruments is a Tunable Filter with Frequency 2.18 to 2.48 GHz, Tunable Frequency 300 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2 dB. Tags: Module with Connectors, Digitally Controlled. More details for WTRCT10-2180-2480-10-20-40M can be seen below.