The WTRCTW5-670-1000-0.4-2.4-40-13 from Wainwright Instruments is a Tunable Filter with Frequency 0.67 to 1 GHz, Tunable Frequency 330 MHz, Bandwidth 0.4 MHz, Rejection 40 dB, Insertion Loss 0.5 to 2.3 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCTW5-670-1000-0.4-2.4-40-13 can be seen below.