While helpful for many applications, the possibility of a 100 meterĮrror in the position of a critical waypoint or trail location may present a serious problem for some users, especially when attempting to accurately map them. A laptop or Palmtop computer is also required to log the points in the field.įor a long time now, many posters on the -nav newsgroup have expressed their frustration with Selective Availability (S/A), the intentional scrambling of the civilian signals that makes it accurate only to 100 meters, 95% of the time. Much more accurate results than possible with an uncorrected standard GPS receiver. The GPS PostPro™ program is a software solution that will enable the user to record positions with DeLorme’s Earthmate GPS receiver, which can be processed later, via an internet connection, to yield Various other mapping programs, announced a new software selection entitled, GPS PostPro™. Recently, DeLorme, who brought you Street Atlas USA ® 7.0, DeLorme Topo USA™ 2.0, AAA Map'n'Go 5.0, and DeLorme’s Earthmate™ /GPS PostPro™ Combination
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