Description: A user supplied string that indicates the Global Positioning System (GPS) coordinates for the location of this chassis. N 45 58 23, W 34 56 12 N37 37' 00 latitude, W122 22' 00 longitude N36*39.246' W121*40.121' Two-dimensional GPS positioning offers latitude and longitude information as a four dimensional vector: where Direction is one of the four basic values: N, S, W, E; hours ranges from 0 to 180 (for latitude) and 0 to 90 for longitude, and, finally, minutes and seconds range from 0 to 60. Thus is an example of longitude and is an example of latitude. Four bytes of addressing space (one byte for each of the four dimensions) are necessary to store latitude and four bytes are also sufficient to store longitude. Thus eight bytes total are necessary to address the whole surface of earth with precision down to 0.1 mile! Notice that if we desired precision down to 0.001 mile (1.8 meters) then we would need just five bytes for each component, or ten bytes together for the full address (as military versions provide).