The LB345/250OK-A-1 from G-WAY Microwave is a Band Pass Filter with Frequency 220 to 470 MHz, Bandwidth 250 MHz, Center Frequency 345 MHz, Insertion Loss 0.7 to 1.7 dB, Rejection 35 to 40 dB. Tags: Module with Connectors, Cavity Filter. More details for LB345/250OK-A-1 can be seen below.