The WTRCT10-2110-2410-5-12-40M-6 from Wainwright Instruments is a Tunable Filter with Frequency 2.11 to 2.41 GHz, Tunable Frequency 300 MHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2.5 dB. Tags: Module with Connectors, Digitally Controlled. More details for WTRCT10-2110-2410-5-12-40M-6 can be seen below.