The WTRCTV5-2300-3000-5-20-40-12 from Wainwright Instruments is a Tunable Filter with Frequency 2.3 to 3 GHz, Tunable Frequency 700 MHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 0.75 to 1.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCTV5-2300-3000-5-20-40-12 can be seen below.