The WTBCQV6-5500-6000-40-200-40-1 from Wainwright Instruments is a Tunable Filter with Frequency 5.5 to 6 GHz, Tunable Frequency 500 MHz, Bandwidth 40 MHz, Rejection 40 dB, Insertion Loss 2.5 to 3 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCQV6-5500-6000-40-200-40-1 can be seen below.