The WTRCT10-1700-2000-5-12-40M-18 from Wainwright Instruments is a Tunable Filter with Frequency 1.7 to 2 GHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2.5 dB, Supply Voltage 23 to 32 V DC. Tags: Module with Connectors, Digitally Controlled. More details for WTRCT10-1700-2000-5-12-40M-18 can be seen below.