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 Number: 96
Posted: Wed, Jun 18, 2008 6:52 PM
Last Updated: Mon, Jul 13, 2015 12:07 AM
Online URL: https://www.maretron.com/support/knowledgebase/phpkbv7/article.php?id=96