The WTRCD20-1700-2000-25-29-40-4 from Wainwright Instruments is a Tunable Filter with Frequency 1.7 to 2 GHz, Tunable Frequency 300 MHz, Bandwidth 25 MHz, Rejection 40 dB, Insertion Loss 2.25 to 3.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCD20-1700-2000-25-29-40-4 can be seen below.