The WTBCGV6-400-500-20-60-30-2 from Wainwright Instruments is a Tunable Filter with Frequency 0.4 to 0.5 GHz, Bandwidth 20 MHz, Rejection 30 dB, Insertion Loss 1 to 1.5 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCGV6-400-500-20-60-30-2 can be seen below.