The light source from the laser simulator is an infrared light source. The light beam is invisible
to the naked eye. The lens should not be viewed directly to prevent possible eye damage.
Do not touch the lens with bare fingers. Skin oils will damage the optical surface.
f. Place mode switch (1) on laser simulator to HI position (fig. 3-7).
Simulator has a narrow beam and must be manipulated carefully in step g below to obtain ALT
g. Stand 15 feet (approximately) in front of aircraft, and point laser simulator's lens assembly toward ALT receiver
Figure 3-7. Laser Simulator.