The WTBCFV4-3300-4000-10-30-10-2 from Wainwright Instruments is a Tunable Filter with Frequency 3.3 to 4 GHz, Bandwidth 10 MHz, Rejection 10 dB, Insertion Loss 1.75 to 2 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCFV4-3300-4000-10-30-10-2 can be seen below.