Topcom OUTDOOR SPORTSWATCH 2000 Manuel D'utilisateur page 25

• The Watch also includes a compensation setting for Magnetic
Declination. Check the coming section "Magnetic Declination
Compensation " for more detail.
15.7.2 MAGNETIC DECLINATION INFORMATION
• Most topographic maps include a small arrow which shown magnetic
north pole and or the magnetic declination information.
• For the benefit of the Outdoor Sports Watch 2000 user, this manual
includes the magnetic declination for some major cities.
• Check the coming section 'Magnetic Declination at Major Cities' for
more detail.For the cities are not included in the list, please refer to the
online magnetic declination information at:
- http://www.geolab.nrcan.gc.ca/geomag/e_cgrf.html
- http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl
15.7.3 MAGNETIC DECLINATION COMPENSATION
To compensate an object's bearing by subtract westerly (W) magnetic
declination or add easterly(E) magnetic declination with the magnetic
bearing.
1. Example 1: 23° Westerly magnetic declination and the compass nee-
dle points 323.
- TB = MB - W. While MB = 323; W =23
- TB = 323 - 23
- TB = 300
The true bearing will be 300.
2. Example 2: 22° Easterly magnetic declination and the compass nee-
dle points 278.
- TB = MB + E. While MB = 278; E = 22
- TB = 278+ 22
- TB = 300
The true bearing will be 300.
The Watch allows you compensate the compass bearing at a place where
the magnetic declination is either Westerly declination or Easterly
declination.
Check the coming section "Calibrating the Compass" for more detail of the
setting.
TOPCOM Outdoor Sportswatch 2000
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