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The Garmin .img format is what Garmin devices use to store the maps for its GPS units. The img files contain a header and many subfiles. Img's filestore is based on FAT system. [1] Some old GPS units are not able to work with multiple img files so they need to be merged into one file called gmapsupp.img using programs like Mapsource. [2]
The system was developed partly because access to foreign government-controlled global navigation satellite systems is not guaranteed in hostile situations, as happened to the Indian military in 1999 when the United States denied an Indian request for Global Positioning System (GPS) data for the Kargil region, which would have provided vital information. [22]
The GPS week number rollover is a phenomenon that happens every 1,024 weeks, which is about 19.6 years. The Global Positioning System (GPS) broadcasts a date, including a week number counter that is stored in only ten binary digits, whose range is therefore 0–1,023.
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Garmin Tech Center (台灣國際航電科技大樓) is the head office of Garmin (Asia) Corporation and located in the Xizhi District of New Taipei City, Taiwan. In 2010, Garmin opened a facility in Cary, North Carolina as part of the Research Triangle Park. [89] Garmin operates in several other countries besides the UK, USA, and Taiwan. [90]
1400 – 1370 BC: phase III A1 of the Late Helladic period in Greece. [15] Palaces are constructed in Tiryns and Pylos. [16] Linear B, which transcribes an archaic form of Greek, appears in the palace of Knossos at the end of Phase III A1 of the Late Minoan period. [17] 1370 – 1340 BC: phase III A2 of the Late Helladic period in Greece. [15]
The map is oriented to the North, with a wind rose centered in Central Asia, possibly the observatory of Ulugh Beg in the Mongol city of Samarkand in Uzbekistan, or the western shore of the Caspian Sea. The wind rose divides the map into eight sectors. The map is colored: the seas are left white, although the Red Sea is colored in red ...
The making of the map was a major undertaking and the map took several years to complete. The map was not created by Fra Mauro alone, but by a team of cartographers, artists, and copyists led by him and using some of the most expensive techniques available at the time. The price of the map would have been about an average copyist's annual ...