The WTBCFV4-3300-4000-10-30-10-11 from Wainwright Instruments is a Tunable Filter with Frequency 3.3 to 4 GHz, Tunable Frequency 700 MHz, Bandwidth 10 MHz, Rejection 10 dB, Insertion Loss 1.75 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCFV4-3300-4000-10-30-10-11 can be seen below.