The FBC-15-FB-0002 from Farran is a Noise Figure Analyzer Frequency Extender with Operating Frequency 50 to 75 GHz, LO Frequency 12.5 to 18.75 GHz, IF Frequency 11.139 MHz, Input Power 5 to 10 dBm, Conversion Loss 10 dB. More details for FBC-15-FB-0002 can be seen below.