The FP30107-3 from Sinclair Technologies is a Band Pass Filter with Frequency 406 to 512 MHz, Insertion Loss 0.5 to 3 dB, Power 80 to 350 W, VSWR 1.50:1, Operating_Temperature -30 to 60 Degree C. Tags: Module with Connectors, Cavity Filter. More details for FP30107-3 can be seen below.