The WTRCTW10-1700-2500-20-40-40-35 from Wainwright Instruments is a Tunable Filter with Frequency 1.7 to 2.5 GHz, Tunable Frequency 800 MHz, Bandwidth 20 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCTW10-1700-2500-20-40-40-35 can be seen below.