Accuracy - Leica GPS1200 Series User Manual

7.1.2

Accuracy

Differential code
Differential phase
in post-processing
Technical Data
Accuracy is dependent upon various factors including the number of satellites
tracked, constellation geometry, observation time, ephemeris accuracy, ionospheric
disturbance, multipath and resolved ambiguities.
The following accuracies, given as root mean square, are based on measurements
processed using LGO and on real-time measurements.
GPS and GLONASS can increase accuracy by up to 30% relative to GPS only.
For all receivers, the baseline precision of a differential code solution for static and
kinematic surveys is 25 cm.
Normal baselines with GX1230 GG/GX1230/GX1220
GG/GX1220/GRX1200 Series plus AX1202 GG
Static
Horizontal
5 mm + 0.5 ppm
Vertical
10 mm + 0.5 ppm
GPS1200
Kinematic
Horizontal
10 mm + 1 ppm
Vertical
20 mm + 1 ppm
113