The FVR-1845 from RF Bay is a Frequency Multiplier with Input Frequency 360 to 378 MHz, Output Frequency 1.8 to 1.89 GHz, Input Power -5 dBm, Harmonics 30 to 65 dBc, Conversion Loss 7.5 dB. Tags: Module with Connectors, Active. More details for FVR-1845 can be seen below.