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【D20】Calibration System for Global Positioning System Satellite Receivers

Calibrated Device  GNSS Satellite Receivers
Range 50 m to 25 km
Uncertainty 
(1) Relative static positioning - Ultra-short distance (≤ 55 m): 4.2 mm, Middle distance (≤ 25 km): 13 mm
(2) Kinematic positioning - Ultra-short distance (≤ 55 m): 4.2 mm
(3) Absolute positioning: 39 mm