The WTBCGV5-800-900-10-50-40-2 from Wainwright Instruments is a Tunable Filter with Frequency 0.8 to 0.9 GHz, Tunable Frequency 100 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 1.5 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCGV5-800-900-10-50-40-2 can be seen below.