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It's not possible to convert NT maps to non NT maps
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Thread: NT and NON NT maps
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5th November 2010, 06:23 PM #1BallebarGuest
NT means New Technology and it's a Garmin compression technology for routable Garmin maps. Using NT format for a non-routable map actually makes it larger and it's NOT recommended to build this option according to Garmin.
NT maps was first introduced when memory storage and memory cards was very expensive. In 2004/2005 you would have to pay ~700 USD for a 4 GB memory card.
Garmin uses NT format to protect maps from editing and stealing details by other map makers. OF / non-NT (old format / legacy format) maps can be edited by some map editor tools. The map data is normally the same in the NT & non-NT maps but some details might be removed in non-NT maps if it's close to 2 GiB in size. Older units have a 2 GiB limit of file size for map files.
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9th January 2011, 12:13 PM #2Important User
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13th March 2011, 07:18 PM #3GPSPower Helper
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Can anyone edit NT Maps to Fix Mistakes etc
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19th April 2012, 11:44 AM #4Junior Member
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how to bring garmin maps to Trimble GPS systems?
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19th April 2012, 02:58 PM #5Senior Member
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No. For map errors, you notify Navteq at their site as they have a form for this very thing. The maps get corrected faster than by going through Garmin. For POIs, that data is provided to Garmin from various external sources. The only way to "fix" the POIs is to use custom POI files such as those found on
Originally Posted by dasilvarsa
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20th April 2012, 09:35 AM #6Master
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What OS the device is running? Originally Posted by avhnmurthy
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26th April 2012, 08:49 PM #7Member
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Any idea of how long after a report is made before we see any change on maps released after the report?
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26th April 2012, 08:54 PM #8Important User
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25th August 2012, 01:39 PM #9Junior Member
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Is it possible to edit NT maps?
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25th August 2012, 01:53 PM #10Important User
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Read the thread
......but:
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You have to navigate to get to the good.
Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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