8.3 Compass Mode -
Backward Bearing and Compass Lock
8.4 Compass Mode - Calibrating the Compass
8.5 Compass Mode - Setting Magnetic Declination
8.6 Compass Mode - Magnetic Declination at Major Cities
NOTE:
- When the 'Backward Bearing indicator ' ' is appeared, the Watch is showing the backward
bearing direction of the navigating direction.
- When the 'Lock' indicator ' ' is appeared, the compass direction, bearing direction and the
magnetic north pole pointer are locked and would not be changed.
- The Compass Lock will be released automatically when the Watch enter IDLE Mode.
Normal Bearing
Backward Bearing
315˚
135
0˚
0˚
0˚
backward
bearing
indicator
navigating
direction
navigating
direction
Direction Unlock
Direction Locked
compass
lock indicator
[L/R]
[S/S]
Compass Mode
Rotation Calibration
Stop Display
Magnetic Declination
Display
Rotation Calibration
Start Display
Calibration Display
- In Compass Mode, press and hold [M] to enter
Compass Calibration display
- To start rotation calibration, press [S/S] button once.
The pointers will start rotating, turn the watch ( keep
parallel to the horizon) in the same direction of the
rotation pointers for more than 2 turns.
- Press [S/S] or [L/R] button to stop the calibration when
the 2-turn rotation calibration is completed.
- When the pointer stop rotation, hold [M] button to back
to the Compass Mode or press [M] button once to set
the magnetic declination.
Hold [M]
[M]
Hold [M]
[S/S]
[S/S] /
[L/R]
Compass Calibration
turning axis
start
turn
turn
turn
Completed
'Rotation' Process
True North
Magnetic
Declination
Magnetic
Declination
Magnetic
North
What is Magnetic Declination
- The Magnetic North Pole which is slightly different from
the True North Pole. This Watch, like most magnetic
compass, points to the Magnetic North Pole, while
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 whom intends to perform
accurate navigation, this Watch must be adjusted for
magnetic declination.
Magnetic Declination Information
- Most topographic maps include a small arrow which
shown magnetic north pole and or the magnetic
declination information.
- This manual includes the magnetic declination for some
major cities. See the coming chapter 'Magnetic
Declination at Major Cities' for more detail.
- For the cities are not included in the list, please refer to
the online magnetic declination calculator at:
- http://geomag.nrcan.gc.ca/apps/mdcal_e.php
- http://www.ngdc.noaa.gov/seg/geomag/jsp/Declina-
tion.jsp
