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i have just upgraded to a navman gps from a matrix combo and i printed out my marks and added some of them into the new unit and i went out fishing and thay seem to be out could thay be in a different format seem to be missing a diget
1. different datum, most these days use WGS84, another popular datum is AGD. If these are not the same for both units then you will notice an error of about 204 meters NNE.
2. different waypont format, most will use DD MM.MM but if other unit set for DD MM SS you again win notice an error but will not be consistent.
Try what wooly said first, datum and format are the obvious culprits.
My problem was less obvious. Id entered S53.00 and W 156.0 etc, then all other points went in as S53 and E156. For some reason the unit defaulted to East instead of West. Took me some time to figure out what Id done wrong.
Maybe yours did that too?
Otherwise enter your points on a map like google earth and see where they end up.
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