The FD-2+ from Mini Circuits is a Frequency Multiplier with Input Frequency 5 to 500 MHz, Output Frequency 10 MHz to 1 GHz, Input Power 1 to 15 dBm, Harmonics 16 to 40 dBc, Conversion Loss 13 to 16 dB. Tags: Connectorized. More details for FD-2+ can be seen below.