Night Optics Falcon 6x Gen 3 Gated Long-Range Night Vision Binocular - Manual (Page 110)

2-75
(5) Hold the goggles with your right hand and fold the right
eyecup over the eyepiece lens with your right thumb or forefinger
to obstruct view through the right eyepiece lens. Rotate the left
diopter adjustment for the clearest view of the image intensifier
screen.
(6) Readjust the objective lens while observing an object
until the sharpest image is obtained.
2-24 OPERATION WITH COMPASS
You will get inaccurate readings when using the
compass on any headmount or helmet mount with
the magnet still installed. Only the magnet on the
metal mount can be removed without causing
damage to the equipment, see paragraph 2-10.
NOTE
• The compass reading is the magnetic North, not
true North.
•
The compass reading is within 2
°
of correct
absolute magnetic bearing. Compass readings
with mounted goggles (headmount or helmet
mount) can be up to
±
15
°
of correct absolute
magnetic bearing. This occurs mostly in the East
(90
°
) to West (270
°
) and less in the North (360
°
) to
South (180
°
) reading. If the compass is
inadvertently magnetized this could cause an
additional 15
°
error.
CAUTION