The WTRCD5-1800-2000-5-15-40-28 from Wainwright Instruments is a Tunable Filter with Frequency 1.8 to 2 GHz, Tunable Frequency 200 MHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 0.75 to 1.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCD5-1800-2000-5-15-40-28 can be seen below.