The WTRCT8-830-990-5-10-40-3 from Wainwright Instruments is a Tunable Filter with Frequency 0.83 to 0.99 GHz, Bandwidth 5 MHz, Rejection 40 dB, Insertion Loss 0.6 to 1.25 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCT8-830-990-5-10-40-3 can be seen below.