The FMR-3-5 from RF Bay is a Frequency Multiplier with Input Frequency 700 MHz to 1 GHz, Output Frequency 2.1 to 3 GHz, Harmonics 25 to 40 dBc, Conversion Loss 12 dB, Frequnecy 700 MHz to 1 GHz. Tags: Module with Connectors, Active. More details for FMR-3-5 can be seen below.