iiiMap DataOne of the goals of Garmin is to provide customers with the most complete andaccurate cartography that is available to us at a reasonable cost. We use a combinationof governmental and private data sources, which we identify as required in productliterature and copyright messages displayed to the consumer. Virtually all data sourcescontain inaccurate or incomplete data to some degree. This is particularly true outsidethe United States, where complete and accurate digital data is often not available orprohibitively expensive.Due to map accuracy issues, during your travels it is advisable to visually checkyour general surroundings and compare them to the on-screen map data. Making suchcomparisons on a routine basis will help ensure that you are heading to or arriving atthe intended destination.General InformationIntroductionThe GPS V uses the Global PositioningSystem (GPS) in order to find your preciselocation. GPS consists of a constellation of24 (or more) satellites, circling the earthtwice a day, at an approximate altitude of12,000 miles. The satellites transmit verylow power radio signals containing positionand time information, allowing anyone witha GPS receiver to determine their locationon the earth within 100 meters. For moredetailed information regarding GPS, we haveprepared a booklet called “GPS Guide forBeginners” which is availableto you from our web site at:www.garmin.com.