Why orange arrival number if I have a positive arrival ? Print

The easy answer would be: you have an obstacle in between.

However, many times there is no obstacle and still the number is showing orange, as a warning.

The reason is quite simple: the terrain model is used to determine if there is an obstacle, and your waypoint altitude (saved in the waypoint file) is lower than the terrain altitude in that position.

This is quite normal, because the terrain altitude or the waypoint altitude is approximated.

In practice, what happens is that LK is finding an obstacle.. right OVER your waypoint.

Which may also indicate something can be wrong with the waypoint altitude. Check it!