The WTRCFV8-2500-3000-10-25-40-4 from Wainwright Instruments is a Tunable Filter with Frequency 2.5 to 3 GHz, Tunable Frequency 500 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 1 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCFV8-2500-3000-10-25-40-4 can be seen below.