The WTBCGV6-800-1000-40-84-40-3 from Wainwright Instruments is a Tunable Filter with Frequency 0.8 to 1 GHz, Bandwidth 40 MHz, Rejection 40 dB, Insertion Loss 1.25 to 1.75 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCGV6-800-1000-40-84-40-3 can be seen below.