GPS TrackMaker - If you use your GPS professionally, certainly you need GTM PRO. The professional version of GPS TrackMaker is for those users that need area calculation, data transfer to Microsoft Excel, import and export to AutoCad and ArcView, and other advanced functions. The program uses a hardware key or dongle, an electronic plug that works as an unlock password for GTM PRO. The plug is easily connected to the USB port, and must be present when GPS TrackMaker Professional is being executed. The plug doesn't interfere in the operation of the printer, scanner or other devices.

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