The WTRCFV8-3410-4410-10-24-40-1 from Wainwright Instruments is a Tunable Filter with Frequency 3.41 to 4.41 GHz, Tunable Frequency 1000 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 1.5 to 2.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCFV8-3410-4410-10-24-40-1 can be seen below.