The WTRCT10-1700-2120-20-30-40-29 from Wainwright Instruments is a Tunable Filter with Frequency 1.7 to 2.12 GHz, Tunable Frequency 420 MHz, Bandwidth 20 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCT10-1700-2120-20-30-40-29 can be seen below.