The FM5X37P5M52P5M from Lotus Communication Systems is a Frequency Multiplier with Input Frequency 7.5 to 10.5 MHz, Output Frequency 37.5 to 52.5 MHz, Input Power 0 to 5 dBm, Harmonics -1.3 to 39 dBc, Conversion Loss 22.9 dBm. Tags: Module with Connectors. More details for FM5X37P5M52P5M can be seen below.