The FM3X300M450M from Lotus Communication Systems is a Frequency Multiplier with Input Frequency 100 to 150 MHz, Output Frequency 300 to 450 MHz, Input Power 12 to 17 dBm, Harmonics 52 dBc, Conversion Loss 13.2 to 16 dBm. Tags: Module with Connectors, Passive. More details for FM3X300M450M can be seen below.