Guidelines for Correct Results with GNSS Surveys 4.5

Undisturbed satellite signal reception

Successful GNSS surveys require undisturbed satellite signal reception, especially at the instrument which serves as a base. Set up the instrument in locations which are free of obstructions such as trees, buildings or mountains.

Steady instrument for static surveys

For static surveys, the instrument must be kept perfectly steady throughout the entire occupation of a point. Place the instrument on a tripod or pillar.

Centred and levelled instrument 

Centre and level the instrument precisely over the marker.

Tilt compensation for kinematic surveys

If tilt compensation is available and activated then tilt compensation is applied for stakeout and surveys with instantaneous point measurement, auto points or point measurements with short occupation time. The pole tip can be placed on the marker, while the antenna does not have to remain levelled and steady. The status of the tilt compensation is indicated by an icon and the
Tilt LED.