The BUDC3G20G from Lotus Communication Systems is a Block Up/Down Converter with Input Upconverter Frequency 500 MHz to 9 GHz, Input Downconverter Frequency 500 MHz to 9 GHz, Conversion Loss 8.2 to 11.6 dB(Down), 8.3 to 11.5 dB(Up), Output Upconverter Frequency 3 to 20 GHz, Output Downconverter Frequency 3 to 20 GHz. Tags: Module. More details for BUDC3G20G can be seen below.