But because the satellites are not 100 percent accurate for civilian use ( the Department of Defense insisted on built-in errors for security purposes ) the FAA ( www . faa . gov ) and airlines are augmenting the system by building a network of ground-based reference stations that will still preserve the military's security and enhance the accuracy of the civilian system.
42.
The meeting agenda consisted of the following fields : " Provincial Local Government Administration Geodetic and Cartographic-tasks and effects ", " Current comments on the functioning of the Municipal Centre for Geodetic and Cartographic Documentation ", " Sources of financing the construction ZSIN and BDOT 500 ", the " Offer training in the field geodesy and cartography ", " Use of GNSS reference station networks ".
