The WTRCT10-1920-2340-5-10-40-4 from Wainwright Instruments is a Tunable Filter with Frequency 1.92 to 2.34 GHz, Tunable Frequency 420 MHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCT10-1920-2340-5-10-40-4 can be seen below.