The WTRCTW10-1700-2500-10-20-40-18 from Wainwright Instruments is a Tunable Filter with Frequency 1.7 to 2.5 GHz, Tunable Frequency 800 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCTW10-1700-2500-10-20-40-18 can be seen below.