The Line of Sight command in ExpertGPS Pro allows you to create an elevation profile between two waypoints. You can use this feature to determine whether a far-off
mountain peak is visible from your current location, or if it is blocked by a ridge in-between. Wireless network installers can use the Line of Sight tool
to check for obstructions between two radio towers.
To determine the line of sight between two waypoints, do the following:
If you are viewing the line of sight between two radio towers, mark waypoints at each tower location, and add the tower's height to the ground elevation in the Edit Waypoint dialog.