The WTRCTV5-670-1000-20-60-40M-1 from Wainwright Instruments is a Tunable Filter with Frequency 0.67 to 1 GHz, Tunable Frequency 330 MHz, Bandwidth 20 MHz, Rejection 40 dB, Insertion Loss 0.5 to 1 dB. Tags: Module with Connectors, Digitally Controlled. More details for WTRCTV5-670-1000-20-60-40M-1 can be seen below.