The BUC-18400-04 from EM Research is a Block Up Converter with IF frequency 950 to 2150 MHz, RF/Output Frequency 17300 to 18400 MHz, Output Power 0 dBm, External reference 10 MHz, Phase Noise -98 to -78 dBc/Hz. Tags: Module with Connectors. More details for BUC-18400-04 can be seen below.