61 
 
Figure 22. Select which settings to update with Get improved settings 
 
 
If  Orientation in vehicle is selected, the improvement to orientation should only be 
applied if the change in the orientation is small (less than 5°). If the change in orientation 
is large then it is likely that the original configuration was wrong or has not been loaded 
into NAVconfig. You are very likely to get poor results if the orientation is changed by 
a large amount. 
Primary antenna 
The RT can calculate the position of the primary antenna itself. However, this takes time 
and better results can be achieved sooner if the user measures the distance accurately. 
Getting these measurements wrong is one of the main reasons for poor results from the 
RT, so it is important to be careful. It is recommended to measure the GNSS antenna 
position to an accuracy of 10 cm or better. Figure 23 shows the Primary Antenna page.