The WTRCJV8-4400-5150-40-160-50 from Wainwright Instruments is a Tunable Filter with Frequency 4.4 to 5.15 GHz, Tunable Frequency 750 MHz, Bandwidth 40 MHz, Rejection 50 dB, Insertion Loss 1.75 to 2 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCJV8-4400-5150-40-160-50 can be seen below.