Topographic survey uses the following equipment:-Satellite positioning 1 X 20 of frequency used to measure production Huace grid control built độhạng IV. GPS consists of 5 air with precision as follows:-Measuring accuracy coordinate increments ((X-Y ) in static measurement mode+ Horizontal: ± (5 mm + 2. ppm). DMM+ Vertical: ± (10 mm + 2. ppm). DMM-Sync devices comes: base, feet, meters, cables for venting ...-Auto Machine Leica Sprinter 100, mia 03m of Switzerland produced by Leica, high measuring accuracy ± 2.0 mm/mh = km-Your total Sokkia electronic SET 520K by the Japanese production of Sokkia+ Accuracy:* Angle measurement: 5 "* Measure the edge: 2 mm + 2. ¬¬ ppm. D-Average hydro production by Sokkia C320 + Accuracy:* Sarah altimeter error: 1.5 mm/Km-Contact transmitters, Motorola, HP laptops and dedicated software.-Survey equipment are checked, periodically testing (testing the slip device is attached in the appendix records).
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