The BUC-31000-18 from EM Research is a Block Up Converter with IF frequency 950 to 2150 MHz, RF/Output Frequency 30000 to 31000 MHz, Output Power 3 dBm, External reference 10 MHz, Phase Noise -98 to -78 dBc/Hz. Tags: Module with Connectors. More details for BUC-31000-18 can be seen below.