The WTBCJV6-3600-4200-200-900-60 from Wainwright Instruments is a Tunable Filter with Frequency 3.6 to 4.2 GHz, Tunable Frequency 600 MHz, Bandwidth 200 MHz, Rejection 60 dB, Insertion Loss 1.5 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCJV6-3600-4200-200-900-60 can be seen below.