The WTBCTV5-2100-2200-10-35-40-4 from Wainwright Instruments is a Tunable Filter with Frequency 2.1 to 2.2 GHz, Tunable Frequency 100 MHz, Bandwidth 10 MHz, Rejection 40 dB, Insertion Loss 2.75 to 3 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTBCTV5-2100-2200-10-35-40-4 can be seen below.