The AET/AER-03-0001/2 from Farran is a Antenna Test & Measurement Frequency Extension System with Dynamic Range 120 to 135 dB(AER-03-0002), Frequency 220 to 325 GHz, LO Frequency 9.16 to 13.54 GHz, Output Power -12 dBm, RF Input Frequency 12.22 to 18.06 GHz. More details for AET/AER-03-0001/2 can be seen below.