The WTBCJV6-3400-4000-200-900-60-1 from Wainwright Instruments is a Tunable Filter with Frequency 3.4 to 4 GHz, Bandwidth 200 MHz, Rejection 60 dB, Insertion Loss 1.5 to 2 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCJV6-3400-4000-200-900-60-1 can be seen below.