67 
 
To adjust the settings, click the default value in the Setting column to activate the cell. A 
description on each option and how to adjust it is found below. Clicking in either column 
header will sort the Options in ascending or descending alphabetical order. 
Figure 27. NAVconfig Options page 
 
 
Vehicle starts 
Adjustment: select a predefined value from the drop-down list. 
If you know the vehicle will be level when starting (to within about 5°) select Level. This 
saves about 40 s during the initialisation process since the RT does not have to take the 
time to compute an initial roll and an initial pitch. In high vibration environments Not 
Level may not work and so the RT can only start if the vehicle is level and the Level 
option has been specified. 
Vibration 
Adjustment: select a predefined value from the drop-down list.