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A set of parameters, established by the U.S. Defense Mapping Agency, for determining geometric and physical geodetic relationships
on a global scale. The system includes a geocentric reference ellipsoid; a coordinate system; and a gravity field model. The ellipsoid is
essentially that of the International Union of Geodesy and Geophysics Geodetic Reference System 1980. The coordinate system is a
realization of the conventional terrestrial system, as established by the International Earth Rotation Service. The descriptions of the GPS
satellite orbits in the navigation message are referenced to WGS 84.
WPA / WPA2
WPA (Wi-Fi Protected Access) and WPA2 (Wi-Fi Protected Access II) are security protocols used to encrypt the data which is
exchanged within wireless computer networks.
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