The difference in direction between the magnetic North pole (magnetic North) and the direction to the Earth’s rotational North pole (true North) is referred to as variation. Variation changes depending where you are on the Earth and can be obtained from charts, or alternatively, from a Maretron GPS antenna/receiver (GPS200).
Article ID: 96
Created: June 18, 2008
Last Updated: July 13, 2015
Author: Mark Oslund [mark.oslund@maretron.com]
Online URL: https://www.maretron.com/wp-content/phpkbv95/article.php?id=96