 The upgrade to the Luchs A1 starting in 1986 included the incorporation of a thermal observation and gunnery system, which replaced the original infrared/white light night vision system mounted to the left of the turret.VHF radios have been the German SEM 25 / SEM 35 FM short range radios from LORENZ.HF long-range radio was the AN/GRC 9 with the LV 80 100 Watts RF amplifier for Morse Code.