The WTBCTV3-700-1000-1-20-40-1 from Wainwright Instruments is a Tunable Filter with Frequency 0.7 to 1 GHz, Tunable Frequency 300 MHz, Bandwidth 1 MHz, Rejection 40 dB, Insertion Loss 1.75 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCTV3-700-1000-1-20-40-1 can be seen below.