The WTBCTV5-1850-1950-10-35-40-1 from Wainwright Instruments is a Tunable Filter with Frequency 1.85 to 1.95 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 WTBCTV5-1850-1950-10-35-40-1 can be seen below.