The WBCTV4-425-433-435-443-50 from Wainwright Instruments is a Band Pass Filter with Frequency 433 to 435 MHz, Bandwidth 2 MHz, Center Frequency 434 MHz, Insertion Loss 1 to 1.25 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTV4-425-433-435-443-50 can be seen below.