The WTBCJV6-3300-4300-100-300-40 from Wainwright Instruments is a Tunable Filter with Frequency 3.3 to 4.3 GHz, Tunable Frequency 1000 MHz, Bandwidth 100 MHz, Rejection 40 dB, Insertion Loss 1.5 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCJV6-3300-4300-100-300-40 can be seen below.