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Maps, GPS and Google Earth
UTM?
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<blockquote data-quote="Bullet bumper" data-source="post: 963215" data-attributes="member: 17844"><p>The situation on the topo map is the same in the US . I thought it would be.</p><p>The situation inside a GPS may vary as to how it handles a shortened grid reference number . </p><p>Some may shorten the number from the right which will make it the right number with less precision . However I would have thought that your second reference number of 35000 could not be right if you enter it as 3735000 instead , as you stated .</p><p>To reference 35000 meters I would enter 0035000 . Although the US National grid is based on the UTM system I would tend to use UTM setting in the GPS if you have taken a grid reference from a UTM grid based map and enter the same datum that is on the map . Then the GPS will convert it and navigate using WGS84 the datum in the satellites but read out you position data to suit the map datum . </p><p>National Grid is more like the Military grid system MGRS as far as I can tell , I could be wrong .</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 963215, member: 17844"] The situation on the topo map is the same in the US . I thought it would be. The situation inside a GPS may vary as to how it handles a shortened grid reference number . Some may shorten the number from the right which will make it the right number with less precision . However I would have thought that your second reference number of 35000 could not be right if you enter it as 3735000 instead , as you stated . To reference 35000 meters I would enter 0035000 . Although the US National grid is based on the UTM system I would tend to use UTM setting in the GPS if you have taken a grid reference from a UTM grid based map and enter the same datum that is on the map . Then the GPS will convert it and navigate using WGS84 the datum in the satellites but read out you position data to suit the map datum . National Grid is more like the Military grid system MGRS as far as I can tell , I could be wrong . [/QUOTE]
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