a easy fix 4 u mate with the hydrophone is mark at the end of the line then let 3:15sec past and mark again this will give a rough speed and heading
and when u get a square in the top right of map click on the ? this will help u with the N , E , S , W then put ya mouse to the right Bottom and a compass will come up use that to find out the degrees that's if u don't kknow them
hope that helps Ya Kaptain
