The AET/AER-02-0001/2 from Farran is a Antenna Test & Measurement Frequency Extension System with Dynamic Range 80 to 100 dB(AER-02-0002), Frequency 325 to 500 GHz, LO Frequency 9.02 to 13.89 GHz, Output Power -20 dBm, RF Input Frequency 10.83 to 16.67 GHz. More details for AET/AER-02-0001/2 can be seen below.