The WTRCT10-1920-2220-10-20-40M-4 from Wainwright Instruments is a Tunable Filter with Frequency 1.92 to 2.22 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 WTRCT10-1920-2220-10-20-40M-4 can be seen below.