11.7 Compass Mode
- Compass Direction and Bearing
11.8 Compass Mode
- Compass Direction versus Compass Bearing
To define the Direction of an Object
The direction of an object (from a point) can be
specified in term of either compass direction or
compass bearing.
This Watch provides both compass direction and
compass bearing.
The Compass Points
!
The compass directions are North, Northeast, East.
Southeast, South, Southwest, West and Northwest,
and etc.
!
For the examples in the adjacent diagram, the
compass direction of object B from point A is East.
The compass direction of object C from point A is
Southeast.
The Compass Bearing
!
The digital bearing direction of an object is defined as
the angular difference between North and the
object. (Assuming that 0 for North, and the
measuring range is from 0 to 359 )
!
For the examples in the adjacent diagram, the
compass bearing of object B from point A is 90 . The
compass bearing of object C from point A is 135 .
The compass bearing of object D from point A is
315 .
!
!
8
8
8
8
8
8
object B
Compass Bearing
object C
object D
angular
difference
908
1358
3158
point
A
08
08
object B
object C
Compass Direction
object D
point A
N
E
SE
NW
N
Compass Bearing
348.758 to 11.258
11.258 to 33.758
33.758 to 56.258
56.258 to 78.758
78.758 to 101.258
101.258 to 123.758
123.758 to 146.258
146.258 to 168.758
168.758 to 191.258
191.258 to 213.758
213.758 to 236.258
236.258 to 258.758
258.758 to 281.258
281.258 to 303.758
303.758 to 326.258
326.258 to 348.758
Marks
N
NNE
NE
ENE
E
ESE
SE
SSE
S
SSW
SW
WSW
W
WNW
NW
NNW
Compass Direction
North
North Northeast
Northeast
East Northeast
East
East Southeast
Southeast
South Southeast
South
South Southwest
Southwest
West Southwest
West
West Northwest
Northwest
North Northwest
11.10 Compass Mode
- Backward Bearing Direction
11.9 Compass Mode
- Measure Compass Directions
Backward Bearing Directions
backward bearing direction of an
object.
The backward bearing direction is the bearing
direction that on the opposite direction from normal
bearing direction.
When the 'Backward Bearing' indicator is
appeared, the Watch will exhibit the backward
bearing direction of the direction which the
watch is now pointing.
NOTE:
In Backward Bearing Compass Mode, the
magnetic north pointer and the compass direction will
keep exhibit the normal bearing readouts.
To Select Normal Bearing and Backward Bearing
!
Press the [mode] button to select between normal
and backward bearing directions, in the Compass
Mode.
!
The backward bearing will be returned to normal
bearing automatically when the following conditions
is fulfilled:
1) the Watch changing to standby Mode.
2) the Watch changing to Current Time Mode.
!
The Watch provides
!
!
To Take a compass measurement
!
When taking a compass measurement, make sure
that the Watch is parallel to the horizon.
IMPORTANT
: If the watch does not parallel to the
horizon when taking a measurement, the result
may be inaccurate.
!
Turn the Watch until the navigation arrow is pointing
to the direction of the way which intends to go or
pointing to the target object's direction. Then, press
the [LAP/RESET] button to select the Compass
Mode.
!
The compass direction and the compass bearing of
the target object will be exhibited on the 1st and 2 nd
row of the display respectively. The bar graph pointer
will point to the direction of magnetic north.
Norm al Bearin g Dis pla y
Backward Bearin g Dis pla y
backward
bearing
indicator
Measure Compass Dire ctio ns
target object
08
North
3388
North Northwest
navigation direction
(the direction that
the digits are
pointing)
[MODE]
normal
bea ri n g
backward
bearing
magnetic
north pointer
will not affect
compass direction
will not affect
magnetic
north pointer
compass
bearing
compass
direction
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