The WTRCQV8-3410-3710-20-100-50-1 from Wainwright Instruments is a Tunable Filter with Frequency 3.41 to 3.71 GHz, Tunable Frequency 300 MHz, Bandwidth 20 MHz, Rejection 50 dB, Insertion Loss 0.75 to 1.5 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCQV8-3410-3710-20-100-50-1 can be seen below.