Topcon AGA5495, Operator'S Manual

Page: 122 / 144

15.2. Compensating for GPS drift
104
change in the reported vehicle position with respect to fixed objects
such as the field boundary or guidelines. This is largely due to
changes in the satellite constellation patterns.
Other factors such as having no clear access to the sky (operating near
trees or other obstacles) and satellite data errors may also result in a
drift.
Note : It is also possible to reposition the vehicle position to a
selected flag point, refer to Removing or changing a flag point, page
83.
To compensate for GPS drift:
1. Select
/ Nudge Menu / GPS Drift Compensation
.
The compensation value may be selected by:
Entering a positive or negative value in the NORTH and/or EAST
field and confirming.
Or
Entering the required value in the
GPS DRIFT INCREMENT
field
and then selecting the required direction button until the required
compensation is achieved.
2. Select
Reset GPS drift to remove the selected GPS drift
compensation.
15.2.1. Compensating correctly for GPS drift
When correcting GPS drift, the vehicle on the map will be moved
relative to the other objects on the map (for example, the field
boundary, guidelines, flag points and any previous coverage). The
easiest way to see this on the map is to switch to a North Up view
and pan the map so that the vehicle is visible next to the GPS
Drift Options window.
To correctly compensate for GPS drift: