24
TOPCOM Outdoor Sportswatch 2000
15.6.2 CHECK THE TREK COURSE CORRECT
•
During trekking, the Watch can
keep your course correct. For
example, the correct trail starts
from point A and finishes at
point E as it is drawn on the
adjacent map.
•
Mark the points (identifiable
landmarks) where the trail turns
its direction or the trail branches
its way, such as the point A, B,
C, D and E on the adjacent map.
•
Find out the bearing directions of point B from point A (315°), point C
from point B (0°), point D from point C (225°), and then point E from
point D (315°).
•
During the trekking, make sure that the heading direction is 315° from
point A to point B. Performing the similar checking in other sections of
the trail.
IMPORTANT:
If you are in doubt of the directions and positions of the trail, consult-
ing the park administration office before starting the trekking.
15.7 MAGNETIC DECLINATION
15.7.1 WHAT IS MAGNETIC DECLINATION
•
The Magnetic North Pole which is slightly different from the True North
Pole.
•
The Outdoor Sports Watch 2000, like most magnetic compass, points
to the Magnetic North Pole. On the contrary, everything measure from
a map is related to the True North Pole.
•
The angular difference between Magnetic North Pole and True North
Pole is called ‘
magnetic declination’
. Its amount (degrees and
minutes) and direction (easterly and westerly) depend on where you
are in the world.
•
For serious compass user or who intends to perform accurate
navigation, compass must be adjusted for magnetic declination.
4110
m
2
1
2
0
m
31
2
0
m
point
A
(st
a
rtin
g
)
point B
point D
point E
(
f
inish )
point C
315
22
5
0
315
0
