The WTRCT8-670-1000-20-40-40M-9 from Wainwright Instruments is a Tunable Filter with Frequency 0.67 to 1 GHz, Bandwidth 20 MHz, Rejection 40 dB, Insertion Loss 0.6 to 1 dB, Supply Voltage 23 to 32 V DC. Tags: Module with Connectors, Digitally Controlled. More details for WTRCT8-670-1000-20-40-40M-9 can be seen below.