Magnetic Declination
The magnetic north is slightly different from the true north.
This watch, like most magnetic compasses, points to the magnetic North
Pole. On the other hand, everything measured on a map is related to the
true north.
The angular difference between magnetic and true north 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 users or those who intend to perform accurate
navigation, the compass must be adjusted for magnetic declination.
The watch also includes a compensation setting for magnetic declination.
Magnetic Declination Information
Most topographic maps include a small arrow which shows magnetic
north or magnetic declination information.
This user manual includes the magnetic declination for some major cities
(see next page).
For those cities whose names are not included in this list, you can input a
city’s latitude and longitude into one of the magnetic declination
calculation websites below to get the magnetic declination:
http://gsc.nrcan.gc.ca/geomag/index_e.php
http://www.ngdc.noaa.gov/seg/geomag/declination.shtml
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Summary of Contents for NG704 SERIES
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Page 5: ...3...
Page 6: ...Timekeeping and Compass Modes 4...
Page 23: ...A Sample Trail on a Map 21...
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